{"id":2888,"date":"2020-04-19T22:14:46","date_gmt":"2020-04-19T14:14:46","guid":{"rendered":"http:\/\/www.yuguoxy.com\/geekhome\/?p=2888"},"modified":"2026-08-18T12:35:29","modified_gmt":"2026-08-18T04:35:29","slug":"2888","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=2888","title":{"rendered":"2020\u5e38\u89c1\u9762\u8bd5\u9898"},"content":{"rendered":"
\n

\u9762\u8bd5\u4e86\u51e0\u5bb6\u516c\u53f8\uff0c\u628a\u9898\u76ee\u6574\u7406\u5982\u4e0b\uff0c\u7b54\u6848\u4ec5\u4f9b\u53c2\u8003\u3002\u4e00\u9762\u504f\u57fa\u7840\uff0c\u5927\u90e8\u5206\u4f1a\u6216\u4f3c\u66fe\u76f8\u8bc6\u3002\u8fc7\u4e0e\u4e0d\u8fc7\uff0c\u770b\u7684\u662f\u57fa\u7840\u5168\u4e0d\u5168\u9762\u3001\u624e\u4e0d\u624e\u5b9e\u3002\u4f1a\u662f\u5e94\u8be5\u7684\uff0c\u7b54\u6848\u8981\u8be6\u7ec6\uff0c\u6709\u7684\u9898\u8981\u80fd\u8bf4\u51fa\u591a\u79cd\u5199\u6cd5\u2014\u2014\u9760\u5e73\u65f6\u79ef\u7d2f\u3002<\/p>\n

\u4e0b\u9762\u6309 CSS<\/strong>\u3001HTML<\/strong>\u3001JavaScript<\/strong>\u3001\u7f51\u7edc\u534f\u8bae\u6536\u9f50\u539f\u9898\uff0c\u4ee3\u7801\u4e00\u5757\u4e0d\u6f0f\u3002<\/p>\n\n\n\n\n\n\n\n\n
\u677f\u5757<\/th>\n\u9ad8\u9891\u70b9<\/th>\n<\/tr>\n<\/thead>\n
CSS<\/td>\ncalc \/ @supports \/ @media\u3001\u5c45\u4e2d\u3001\u5355\u4f4d\u30010.5px\u3001\u76d2\u6a21\u578b\u3001\u4e09\u89d2\u5f62\u3001\u6e05\u6d6e\u52a8\u4e0e BFC<\/td>\n<\/tr>\n
HTML<\/td>\nlabel \u6269\u5927\u70b9\u51fb\u3001\u539f\u751f\u904d\u5386\u5144\u5f1f\u8282\u70b9<\/td>\n<\/tr>\n
JS<\/td>\n\u9012\u5f52\u3001\u6e32\u67d3\u8fc7\u7a0b\u3001CORS\u3001\u4e2d\u65ad ajax\u3001\u4e8b\u4ef6\u4ee3\u7406\u3001\u5b8f\u5fae\u4efb\u52a1\u3001\u7ee7\u627f\u3001\u95ed\u5305\u3001ES6\u3001\u53bb\u91cd<\/td>\n<\/tr>\n
\u7f51\u7edc<\/td>\n\u4f1a\u8bdd\/\u6301\u4e45 cookie\u3001GET vs POST\u3001HTTP \u72b6\u6001\u7801<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e00\u3001CSS<\/h2>\n

calc\u3001supports\u3001media \u5404\u81ea\u542b\u4e49\u53ca\u7528\u6cd5\uff1f<\/h3>\n

@supports<\/code> \u68c0\u6d4b\u6d4f\u89c8\u5668\u662f\u5426\u652f\u6301\u67d0\u4e2a CSS \u5c5e\u6027\uff0c\u76f8\u5f53\u4e8e\u6761\u4ef6\u5224\u65ad\uff1a\u652f\u6301\u5199\u4e00\u5957\u6837\u5f0f\uff0c\u4e0d\u652f\u6301\u518d\u7ed9\u66ff\u8865\u3002<\/p>\n

calc()<\/code> \u52a8\u6001\u8ba1\u7b97\u957f\u5ea6\uff0c\u652f\u6301 +<\/code>\u3001-<\/code>\u3001*<\/code>\u3001\/<\/code>\u3002<\/p>\n

@media<\/code> \u6309\u4e0d\u540c\u5a92\u4f53\u7c7b\u578b\u5b9a\u4e49\u6837\u5f0f\u3002<\/p>\n

\u6c34\u5e73\u3001\u5782\u76f4\u5c45\u4e2d\u81f3\u5c11 4 \u79cd\uff1f<\/h3>\n
\n

\u8003\u67e5 CSS \u57fa\u7840\u662f\u5426\u5168\u9762\uff0c\u5e73\u65f6\u8981\u591a\u79ef\u7d2f\u3002<\/p>\n<\/blockquote>\n

\u6c34\u5e73\u5c45\u4e2d<\/strong><\/p>\n

    \n
  • \n
    \u884c\u5185\u5143\u7d20: text-align: center<\/code><\/section>\n<\/li>\n
  • \n
    \u5757\u7ea7\u5143\u7d20: margin: 0 auto<\/code><\/section>\n<\/li>\n
  • \n
    position:absolute<\/code> + left:50% + transform:translateX(-50%)<\/code><\/section>\n<\/li>\n
  • \n
    display:flex<\/code> + justify-content: center<\/code><\/section>\n<\/li>\n<\/ul>\n

    \u5782\u76f4\u5c45\u4e2d<\/strong><\/p>\n

      \n
    • \n
      \u8bbe\u7f6e line-height \u7b49\u4e8e height<\/section>\n<\/li>\n
    • \n
      position\uff1aabsolute<\/code> + top:50% + transform:translateY(-50%)<\/code><\/section>\n<\/li>\n
    • \n
      display:flex<\/code> + align-items: center<\/code><\/section>\n<\/li>\n
    • \n
      display:table + display:table-cell + vertical-align: middle;<\/section>\n<\/li>\n<\/ul>\n

      1rem\u30011em\u30011vh\u30011px \u5404\u81ea\u542b\u4e49\uff1f<\/h3>\n
      \n

      rem<\/p>\n<\/blockquote>\n

      rem \u7684\u957f\u5ea6\u90fd\u76f8\u5bf9\u6839\u5143\u7d20\u3002\u901a\u5e38\u7ed9 html \u8bbe\u5b57\u53f7\uff0c\u5176\u4ed6\u957f\u5ea6\u7528 rem\u3002<\/p>\n

      \n

      em<\/p>\n<\/blockquote>\n

        \n
      • \n
        \u5b50\u5143\u7d20\u5b57\u4f53\u5927\u5c0f\u7684 em \u76f8\u5bf9\u7236\u5143\u7d20\u5b57\u4f53\u5927\u5c0f<\/section>\n<\/li>\n
      • \n
        \u5143\u7d20\u7684 width\/height\/padding\/margin \u7528 em\uff0c\u76f8\u5bf9\u8be5\u5143\u7d20\u81ea\u5df1\u7684 font-size<\/section>\n<\/li>\n<\/ul>\n
        \n

        vw\/vh<\/p>\n<\/blockquote>\n

        Viewport Width \/ Viewport Height\uff0c\u89c6\u7a97\u5bbd\u9ad8\u7684 1%\u3002\u5904\u7406\u5bbd\u5ea6\u65f6 % \u66f4\u5408\u9002\uff0c\u5904\u7406\u9ad8\u5ea6\u65f6 vh \u66f4\u597d\u3002<\/p>\n

        \n

        px<\/p>\n<\/blockquote>\n

        \u50cf\u7d20\uff08Pixel\uff09\uff0c\u76f8\u5bf9\u957f\u5ea6\uff0c\u76f8\u5bf9\u5c4f\u5e55\u5206\u8fa8\u7387\u3002\u5e38\u89c1\u5982 1920\u00d71024\uff1a\u5bbd 1920 \u4e2a\u50cf\u7d20\uff0c\u9ad8 1024 \u4e2a\u50cf\u7d20\u3002<\/p>\n

        \u753b\u4e00\u6761 0.5px \u7684\u76f4\u7ebf\uff1f<\/h3>\n
        \n

        \u8003\u67e5 CSS3 \u7684 transform\u3002<\/p>\n<\/blockquote>\n

        height: 1px;\ntransform: scale(0.5);<\/code><\/pre>\n
        \u8bf4\u4e00\u4e0b\u76d2\u6a21\u578b\uff1f<\/h3>\n
        \n
        \u76d2\u6a21\u578b\u662f CSS \u5fc5\u8003\u57fa\u7840\u3002<\/p>\n<\/blockquote>\n
        \u7531\u91cc\u5411\u5916\uff1acontent\u3001padding\u3001border\u3001margin\u3002<\/p>\n
        IE \u76d2\u5b50\u6a21\u578b\u91cc width \u8868\u793a content+padding+border\uff1b\u6807\u51c6\u76d2\u5b50\u6a21\u578b\u91cc width \u53ea\u6307 content\u3002<\/p>\n
        box-sizing<\/code> \u7684\u7528\u6cd5\uff1a<\/p>\n
          box-sizing: content-box \u662fW3C\u76d2\u5b50\u6a21\u578b\n  box-sizing: border-box \u662fIE\u76d2\u5b50\u6a21\u578b<\/code><\/pre>\n
        \u9ed8\u8ba4\u662f content-box<\/code>\u3002<\/p>\n
        \u753b\u4e00\u4e2a\u4e09\u89d2\u5f62\uff1f<\/h3>\n
        \n
        \u7b80\u5355 CSS \u9898\uff1a\u7528\u7ec4\u4ef6\u5e93\u7684\u540c\u65f6\u522b\u5fd8\u4e86\u539f\u751f\u3002<\/p>\n<\/blockquote>\n
        <style> \n.a{\n            width: 0;\n            height: 0;\n            border-width: 100px;\n            border-style: solid;\n            border-color: transparent #0099CC transparent transparent;\n            transform: rotate(90deg); \/*\u987a\u65f6\u9488\u65cb\u8f6c90\u00b0*\/\n }\n<\/style>\n<div class=\"a\"><\/div><\/code><\/pre>\n
        \u6e05\u9664\u6d6e\u52a8\u7684\u51e0\u79cd\u65b9\u5f0f\u53ca\u539f\u7406\uff1f<\/h3>\n
        \n
        \u6e05\u6d6e\u52a8\u7b80\u5355\uff0c\u771f\u6b63\u8981\u5f15\u51fa\u7684\u662f BFC\u3002<\/p>\n<\/blockquote>\n
          \n
        • \n
          ::after \/ 
           \/ clear: both<\/code><\/section>\n<\/li>\n
        • \n
          \u521b\u5efa\u7236\u7ea7 BFC<\/code>\uff08overflow:hidden\uff09<\/section>\n<\/li>\n
        • \n
          \u7236\u7ea7\u8bbe\u7f6e\u9ad8\u5ea6<\/section>\n<\/li>\n<\/ul>\n
          \n
          BFC<\/strong>\uff08\u5757\u7ea7\u683c\u5f0f\u5316\u4e0a\u4e0b\u6587\uff09\u662f\u72ec\u7acb\u6e32\u67d3\u533a\u57df\uff0c\u5185\u90e8\u5143\u7d20\u4e0e\u5916\u90e8\u9694\u79bb\uff0c\u5b9a\u4f4d\u4e92\u4e0d\u5f71\u54cd\u3002<\/p>\n<\/blockquote>\n
          \u89e6\u53d1\u6761\u4ef6:<\/strong><\/p>\n
            \n
          • \n
            \u6839\u5143\u7d20<\/section>\n<\/li>\n
          • \n
            position: absolute\/fixed<\/code><\/section>\n<\/li>\n
          • \n
            display: inline-block \/ table<\/code><\/section>\n<\/li>\n
          • \n
            float<\/code> \u5143\u7d20<\/section>\n<\/li>\n
          • \n
            overflow !== visible<\/code><\/section>\n<\/li>\n<\/ul>\n
            \u89c4\u5219:<\/strong><\/p>\n
              \n
            • \n
              \u540c\u4e00 BFC \u91cc\u4e24\u4e2a\u76f8\u90bb Box \u5782\u76f4\u6392\u5217<\/section>\n<\/li>\n
            • \n
              \u540c\u4e00 BFC \u91cc\u4e24\u4e2a\u76f8\u90bb Box \u7684 margin \u4f1a\u91cd\u53e0<\/section>\n<\/li>\n
            • \n
              BFC \u533a\u57df\u4e0d\u4e0e float \u5143\u7d20\u533a\u57df\u91cd\u53e0<\/section>\n<\/li>\n
            • \n
              \u7b97 BFC \u9ad8\u5ea6\u65f6\uff0c\u6d6e\u52a8\u5b50\u5143\u7d20\u4e5f\u53c2\u4e0e<\/section>\n<\/li>\n
            • \n
              \u6587\u5b57\u5c42\u4e0d\u4f1a\u88ab\u6d6e\u52a8\u5c42\u8986\u76d6\uff0c\u73af\u7ed5\u5468\u56f4<\/section>\n<\/li>\n<\/ul>\n
              \u4e8c\u3001HTML<\/h2>\n
              \u8bf4\u4e00\u4e0b label \u6807\u7b7e\u7684\u7528\u6cd5<\/h3>\n
              label \u4e3b\u8981\u65b9\u4fbf\u9f20\u6807\u70b9\u51fb\uff0c\u6269\u5927\u53ef\u70b9\u51fb\u8303\u56f4\uff0c\u589e\u5f3a\u64cd\u4f5c\u4f53\u9a8c\u3002<\/p>\n
              \u904d\u5386 A \u8282\u70b9\u7684\u7236\u8282\u70b9\u4e0b\u7684\u6240\u6709\u5b50\u8282\u70b9<\/h3>\n
              \n
              \u8003\u67e5\u539f\u751f DOM\u3002\u957f\u671f\u53ea\u7528 MVVM\uff0c\u8fd9\u9898\u5bb9\u6613\u5fd8\u3002<\/p>\n<\/blockquote>\n
              <script>\n    var b=document.getElementById(\"a\").parentNode.children;\n    console.log(b)\n<\/script><\/code><\/pre>\n
              \u4e09\u3001JavaScript<\/h2>\n
              \u7528 JS \u9012\u5f52\u5199 1 \u5230 100 \u6c42\u548c\uff1f<\/h3>\n
              \n
              \u9012\u5f52\u5e38\u7528\uff0cVue \u505a\u53cc\u5411\u7ed1\u5b9a\u65f6\u68c0\u9a8c\u6570\u636e\u4e5f\u7528\u9012\u5f52\u3002\u9762\u8bd5\u624b\u5199\u65f6\uff0c\u6982\u5ff5\u4e0d\u900f\u4f1a\u5361\u3002<\/p>\n<\/blockquote>\n
              function add(num1,num2){\n\tvar num = num1+num2;\n        if(num2+1>100){\n\t return num;\n\t}else{\n\t  return add(num,num2+1)\n        }\n }\nvar sum =add(1,2);<\/code><\/pre>\n
              \u9875\u9762\u6e32\u67d3 HTML \u7684\u8fc7\u7a0b\uff1f<\/h3>\n
              \n
              \u4e0d\u5fc5\u6b7b\u8bb0\uff0c\u7406\u89e3\u5168\u8fc7\u7a0b\u5373\u53ef\u3002<\/p>\n<\/blockquote>\n
                \n
              1. \n
                \u89e3\u6790 HTML\uff0c\u521b\u5efa DOM \u6811\uff0c\u5e76\u884c\u8bf7\u6c42 css\/image\/js\u3002\u6bcf\u4e2a\u6807\u7b7e\u3001\u6bcf\u6bb5\u6587\u672c\u90fd\u6709\u8282\u70b9\uff0c\u6839\u662f documentElement\uff0c\u5bf9\u5e94 html\u3002<\/section>\n<\/li>\n
              2. \n
                \u89e3\u6790 CSS\uff0c\u7b97\u51fa\u6700\u7ec8\u6837\u5f0f\uff0c\u6784\u5efa CSSOM\u3002\u975e\u6cd5\u8bed\u6cd5\u76f4\u63a5\u5ffd\u7565\u3002\u4f18\u5148\u7ea7\uff1a\u6d4f\u89c8\u5668\u9ed8\u8ba4 < \u7528\u6237\u8bbe\u7f6e < \u5916\u94fe < \u5185\u8054 < html \u4e2d\u7684 style\u3002<\/section>\n<\/li>\n
              3. \n
                DOM Tree + CSSOM \u2192 \u6e32\u67d3\u6811\u3002\u6e32\u67d3\u6811\u4f1a\u5ffd\u7565 head\u3001display:none \u7b49\uff1b\u5927\u6bb5\u6587\u672c\u6bcf\u4e00\u884c\u53ef\u4ee5\u662f\u72ec\u7acb\u8282\u70b9\uff1b\u8282\u70b9\u4e0a\u5b58\u5bf9\u5e94 CSS\u3002<\/section>\n<\/li>\n
              4. \n
                \u6839\u636e\u6e32\u67d3\u6811\u7ed8\u5236\u5230\u5c4f\u5e55\u3002<\/section>\n<\/li>\n<\/ol>\n
                \u56db\u6b65\u4e0d\u662f\u4e00\u6b21\u6027\u505a\u5b8c\u3002DOM \u6216 CSSOM \u88ab\u6539\u5c31\u4f1a\u91cd\u590d\u3002CSS \u548c JavaScript \u5f80\u5f80\u4f1a\u591a\u6b21\u4fee\u6539\u5b83\u4eec\u3002<\/p>\n
                \u8bf4\u4e00\u4e0b CORS\uff1f<\/h3>\n
                CORS \u662f\u65b0\u6807\u51c6\uff0c\u540c\u6e90\u548c\u8de8\u57df\u901a\u4fe1\u90fd\u652f\u6301\u3002fetch<\/code> \u662f\u5b9e\u73b0 CORS \u901a\u4fe1\u7684\u65b9\u5f0f\u4e4b\u4e00\u3002<\/p>\n
                \u5982\u4f55\u4e2d\u65ad ajax \u8bf7\u6c42\uff1f<\/h3>\n
                \u4e00\u662f\u8bbe\u8d85\u65f6\u8ba9\u5b83\u81ea\u52a8\u65ad\u5f00\uff1b\u4e8c\u662f\u624b\u52a8\u505c\uff0c\u6838\u5fc3\u662f\u8c03 XMLHttpRequest \u7684 abort<\/code>\uff0c\u5373 ajax.abort()<\/code>\u3002<\/p>\n
                \u8bf4\u4e00\u4e0b\u4e8b\u4ef6\u4ee3\u7406\uff1f<\/h3>\n
                \u628a\u4e8b\u4ef6\u7ed1\u5230\u76ee\u6807\u7236\u5143\u7d20\uff0c\u5229\u7528\u5192\u6ce1\u89e6\u53d1\u3002<\/p>\n
                ulEl.addEventListener('click', function(e){\n    var target = event.target || event.srcElement;\n    if(!!target && target.nodeName.toUpperCase() === \"LI\"){\n        console.log(target.innerHTML);\n    }\n}, false);<\/code><\/pre>\n
                target\u3001currentTarget \u7684\u533a\u522b\uff1f<\/h3>\n
                currentTarget<\/code> \u662f\u5f53\u524d\u7ed1\u5b9a\u4e8b\u4ef6\u7684\u5143\u7d20\uff1btarget<\/code> \u662f\u5f53\u524d\u88ab\u70b9\u51fb\u7684\u5143\u7d20\u3002<\/p>\n
                \u8bf4\u4e00\u4e0b\u5b8f\u4efb\u52a1\u548c\u5fae\u4efb\u52a1\uff1f<\/h3>\n
                  \n
                1. \n
                  \u5b8f\u4efb\u52a1\uff1a\u5f53\u524d\u8c03\u7528\u6808\u4e2d\u6267\u884c\u7684\u4efb\u52a1\uff08\u4e3b\u4ee3\u7801\u5757\u3001\u5b9a\u65f6\u5668\u7b49\uff09\u3002<\/section>\n<\/li>\n
                2. \n
                  \u5fae\u4efb\u52a1\uff1a\u672c\u6b21\u4e8b\u4ef6\u5faa\u73af\u5b8f\u4efb\u52a1\u6267\u884c\u5b8c\u3001\u4e0b\u4e00\u4e2a\u5b8f\u4efb\u52a1\u5f00\u59cb\u524d\u8981\u8dd1\u7684\u4efb\u52a1\uff08\u56de\u8c03\u3001promise.then\u3001process.nextTick \u7b49\uff09\u3002<\/section>\n<\/li>\n
                3. \n
                  \u5b8f\u4efb\u52a1\u4e8b\u4ef6\u5728 callback queue\uff0c\u7531\u4e8b\u4ef6\u89e6\u53d1\u7ebf\u7a0b\u7ef4\u62a4\uff1b\u5fae\u4efb\u52a1\u5728\u5fae\u4efb\u52a1\u961f\u5217\uff0c\u7531 JS \u5f15\u64ce\u7ebf\u7a0b\u7ef4\u62a4\u3002<\/section>\n<\/li>\n<\/ol>\n
                  \u7ee7\u627f\u7684\u51e0\u79cd\u65b9\u5f0f\u53ca\u4f18\u7f3a\u70b9\uff1f<\/h3>\n
                  \n
                  \u8bf4\u51e0\u79cd\u7ecf\u5178\u65b9\u5f0f\u5e76\u6bd4\u8f83\u4f18\u7f3a\u70b9\u5373\u53ef\u3002<\/p>\n<\/blockquote>\n
                    \n
                  1. \n
                    \u501f\u7528\u6784\u9020\u51fd\u6570\u7ee7\u627f\uff1a\u7528 call \u6216 apply \u628a\u7236\u6784\u9020\u51fd\u6570\u7ed1\u5230\u5b50\u5bf9\u8c61\u4e0a<\/section>\n<\/li>\n
                  2. \n
                    \u539f\u578b\u7ee7\u627f\uff1a\u5b50\u5bf9\u8c61 prototype \u6307\u5411\u7236\u5bf9\u8c61\u7684\u4e00\u4e2a\u5b9e\u4f8b<\/section>\n<\/li>\n
                  3. \n
                    \u7ec4\u5408\u7ee7\u627f<\/section>\n<\/li>\n<\/ol>\n
                    \u539f\u578b\u94fe\u7ee7\u627f\u7684\u7f3a\u70b9<\/strong><\/p>\n
                      \n
                    • \n
                      \u5b57\u9762\u91cf\u91cd\u5199\u539f\u578b\u4f1a\u4e2d\u65ad\u5173\u7cfb\uff1b\u5f15\u7528\u7c7b\u578b\u7684\u539f\u578b\uff0c\u5b50\u7c7b\u578b\u8fd8\u65e0\u6cd5\u7ed9\u8d85\u7c7b\u578b\u4f20\u53c2\u3002<\/section>\n<\/li>\n<\/ul>\n
                      \u501f\u7528\u6784\u9020\u51fd\u6570\uff08\u7c7b\u5f0f\u7ee7\u627f\uff09<\/strong><\/p>\n
                        \n
                      • \n
                        \u89e3\u51b3\u4e86\u4e0a\u9762\u4e24\u70b9\uff0c\u4f46\u6ca1\u6709\u539f\u578b\uff0c\u590d\u7528\u65e0\u4ece\u8c08\u8d77\u3002<\/section>\n<\/li>\n<\/ul>\n
                        \u7ec4\u5408\u5f0f\u7ee7\u627f<\/strong><\/p>\n
                          \n
                        • \n
                          \u8f83\u5e38\u7528\uff1a\u539f\u578b\u94fe\u7ee7\u627f\u539f\u578b\u4e0a\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u501f\u7528\u6784\u9020\u51fd\u6570\u7ee7\u627f\u5b9e\u4f8b\u5c5e\u6027\u3002\u539f\u578b\u4e0a\u5b9a\u4e49\u65b9\u6cd5\u5b9e\u73b0\u590d\u7528\uff0c\u53c8\u4fdd\u8bc1\u5b9e\u4f8b\u6709\u81ea\u5df1\u7684\u5c5e\u6027\u3002<\/section>\n<\/li>\n<\/ul>\n
                          \u8bf4\u4e00\u4e0b\u95ed\u5305\uff1f<\/h3>\n
                          \u5b9e\u8d28\u662f\u51fd\u6570\u5d4c\u5957\u5f62\u6210\u7684\u4f5c\u7528\u57df\u94fe\u3002\u51fd\u6570 A \u5185\u90e8\u6709\u51fd\u6570 B\uff0cB \u80fd\u8bbf\u95ee A \u7684\u53d8\u91cf\uff0cB \u5c31\u662f\u95ed\u5305\u3002<\/p>\n
                          export \u548c export default \u7684\u533a\u522b\uff1f<\/h3>\n
                          export default  xxx\nimport xxx from '.\/'\n\nexport xxx\nimport {xxx} from '.\/'<\/code><\/pre>\n
                          \u81ea\u5df1\u5e38\u7528\u7684 ES6 \u529f\u80fd\uff1f<\/h3>\n
                          \n
                          \u5f00\u653e\u9898\u3002\u522b\u53ea\u8bf4 let\uff0c\u8bf4 module\u3001class\u3001promise \u7b49\uff0c\u5c3d\u91cf\u8bb2\u7ec6\u3002<\/p>\n<\/blockquote>\n
                          \u4ec0\u4e48\u662f\u4f1a\u8bdd cookie\uff0c\u4ec0\u4e48\u662f\u6301\u4e45 cookie\uff1f<\/h3>\n
                          cookie \u7531\u670d\u52a1\u5668\u8fd4\u56de\u3002\u6307\u5b9a\u4e86 expire time \u7684\u662f\u6301\u4e45 cookie\uff0c\u6ca1\u6307\u5b9a\u7684\u662f\u4f1a\u8bdd cookie\u3002<\/p>\n
                          \u6570\u7ec4\u53bb\u91cd\uff1f<\/h3>\n
                          \n
                          \u770b\u7740\u7b80\u5355\uff0c\u9ad8\u5206\u8981\u5199\u51fa\u51e0\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/blockquote>\n
                          js<\/p>\n
                          var arr=['12','32','89','12','12','78','12','32'];\n    \/\/ \u6700\u7b80\u5355\u6570\u7ec4\u53bb\u91cd\u6cd5\n    function unique1(array){\n        var n = []; \/\/\u4e00\u4e2a\u65b0\u7684\u4e34\u65f6\u6570\u7ec4\n        for(var i = 0; i < array.length; i++){ \/\/\u904d\u5386\u5f53\u524d\u6570\u7ec4\n            if (n.indexOf(array[i]) == -1)\n                n.push(array[i]);\n        }\n        return n;\n    }\n    arr=unique1(arr);\n    \/\/ \u901f\u5ea6\u6700\u5feb\uff0c \u5360\u7a7a\u95f4\u6700\u591a\uff08\u7a7a\u95f4\u6362\u65f6\u95f4\uff09\n    function unique2(array){\n        var n = {}, r = [], type;\n        for (var i = 0; i < array.length; i++) {\n            type = typeof array[i];\n            if (!n[array[i]]) {\n                n[array[i]] = [type];\n                r.push(array[i]);\n            } else if (n[array[i]].indexOf(type) < 0) {\n                n[array[i]].push(type);\n                r.push(array[i]);\n            }\n        }\n        return r;\n    }\n    \/\/\u6570\u7ec4\u4e0b\u6807\u5224\u65ad\u6cd5\n    function unique3(array){\n        var n = [array[0]]; \/\/\u7ed3\u679c\u6570\u7ec4\n        for(var i = 1; i < array.length; i++) { \/\/\u4ece\u7b2c\u4e8c\u9879\u5f00\u59cb\u904d\u5386\n            if (array.indexOf(array[i]) == i) \n                n.push(array[i]);\n        }\n        return n;\n    }<\/code><\/pre>\n
                          es6<\/p>\n
                          es6\u65b9\u6cd5\u6570\u7ec4\u53bb\u91cd\narr=[...new Set(arr)];\nes6\u65b9\u6cd5\u6570\u7ec4\u53bb\u91cd\uff0c\u7b2c\u4e8c\u79cd\u65b9\u6cd5\nfunction dedupe(array) {\n  return Array.from(new Set(array));       \/\/Array.from()\u80fd\u628aset\u7ed3\u6784\u8f6c\u6362\u4e3a\u6570\u7ec4\n}<\/code><\/pre>\n
                          \u56db\u3001GET\u3001POST \u4e0e HTTP \u72b6\u6001\u7801<\/h2>\n
                          get\u3001post \u7684\u533a\u522b<\/h3>\n
                          \n
                          \u7b80\u5355\uff0c\u4f46\u8981\u7b54\u5168\u9762\u3002<\/p>\n<\/blockquote>\n
                            \n
                          1. \n
                            get \u7528 URL \u4f20\u53c2\u770b\u5f97\u89c1\uff1bpost \u53c2\u6570\u5728 HTTP \u5305\u4f53\u91cc\u3002get \u5728 URL \u540e\u7528 ? \u8fde\u63a5\u3001& \u5206\u5272\u3002<\/section>\n<\/li>\n
                          2. \n
                            get \u53d7 URL \u957f\u5ea6\u9650\u5236\uff0c\u4e00\u822c\u6700\u5927 2048 \u5b57\u7b26\uff1bpost \u6ca1\u6709\u957f\u5ea6\u9650\u5236\u3002<\/section>\n<\/li>\n
                          3. \n
                            get \u540e\u9000\u65e0\u5f71\u54cd\uff0cpost \u540e\u9000\u4f1a\u91cd\u65b0\u63d0\u4ea4\u3002<\/section>\n<\/li>\n
                          4. \n
                            get \u53ef\u88ab\u7f13\u5b58\uff0cpost \u4e0d\u53ef\u4ee5\u3002<\/section>\n<\/li>\n
                          5. \n
                            get \u53ea URL \u7f16\u7801\uff0cpost \u652f\u6301\u591a\u79cd\u7f16\u7801\u3002<\/section>\n<\/li>\n
                          6. \n
                            get \u4f1a\u7559\u5728\u5386\u53f2\u8bb0\u5f55\uff0cpost \u4e0d\u4f1a\u3002<\/section>\n<\/li>\n
                          7. \n
                            get \u53ea\u652f\u6301 ASCII\uff0cpost \u6ca1\u6709\u5b57\u7b26\u7c7b\u578b\u9650\u5236\u3002<\/section>\n<\/li>\n<\/ol>\n
                            \u4f60\u6240\u77e5\u9053\u7684 HTTP \u54cd\u5e94\u7801\u53ca\u542b\u4e49\uff1f<\/h3>\n
                            \n
                            \u6709\u7ecf\u9a8c\u90fd\u80fd\u8bf4\u51e0\u4e2a\uff0c\u5173\u952e\u662f\u8be6\u7ec6\u4e14\u5168\u9762\u3002<\/p>\n<\/blockquote>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                            \u7c7b\u522b<\/th>\n\u7801<\/th>\n\u542b\u4e49<\/th>\n<\/tr>\n<\/thead>\n
                            1xx \u4e34\u65f6\u54cd\u5e94<\/td>\n100<\/td>\n\u8bf7\u6c42\u8005\u5e94\u5f53\u7ee7\u7eed\u63d0\u51fa\u8bf7\u6c42<\/td>\n<\/tr>\n
                            1xx<\/td>\n101<\/td>\n\u5207\u6362\u534f\u8bae\uff0c\u670d\u52a1\u5668\u5df2\u786e\u8ba4<\/td>\n<\/tr>\n
                            2xx \u6210\u529f<\/td>\n200<\/td>\n\u6b63\u786e\u8bf7\u6c42\u8fd4\u56de\u6b63\u786e\u7ed3\u679c<\/td>\n<\/tr>\n
                            2xx<\/td>\n201<\/td>\n\u8d44\u6e90\u88ab\u6b63\u786e\u521b\u5efa\uff0c\u5982 POST \u521b\u5efa\u7528\u6237<\/td>\n<\/tr>\n
                            2xx<\/td>\n202<\/td>\n\u8bf7\u6c42\u6b63\u786e\uff0c\u7ed3\u679c\u5904\u7406\u4e2d\uff0c\u53ef\u8f6e\u8be2<\/td>\n<\/tr>\n
                            3xx \u91cd\u5b9a\u5411<\/td>\n300<\/td>\n\u6210\u529f\uff0c\u4f46\u7ed3\u679c\u6709\u591a\u79cd\u9009\u62e9<\/td>\n<\/tr>\n
                            3xx<\/td>\n301<\/td>\n\u8d44\u6e90\u88ab\u6c38\u4e45\u8f6c\u79fb<\/td>\n<\/tr>\n
                            3xx<\/td>\n303<\/td>\n\u7528 GET \u8bbf\u95ee\u65b0\u5730\u5740\u83b7\u53d6\u8d44\u6e90<\/td>\n<\/tr>\n
                            3xx<\/td>\n304<\/td>\n\u8d44\u6e90\u672a\u88ab\u4fee\u6539<\/td>\n<\/tr>\n
                            4xx \u8bf7\u6c42\u9519\u8bef<\/td>\n400<\/td>\n\u8bf7\u6c42\u51fa\u9519\uff0c\u5982\u8bf7\u6c42\u5934\u4e0d\u5bf9<\/td>\n<\/tr>\n
                            4xx<\/td>\n401<\/td>\n\u6ca1\u6709\u8ba4\u8bc1\u4fe1\u606f\uff0c\u6ca1\u5e26 Token<\/td>\n<\/tr>\n
                            4xx<\/td>\n402<\/td>\n\u4e3a\u4ee5\u540e\u4fdd\u7559<\/td>\n<\/tr>\n
                            4xx<\/td>\n403<\/td>\n\u4e0d\u5141\u8bb8\u8bbf\u95ee\uff0c\u6ca1\u6743\u9650<\/td>\n<\/tr>\n
                            4xx<\/td>\n404<\/td>\n\u5185\u5bb9\u4e0d\u5b58\u5728<\/td>\n<\/tr>\n
                            5xx \u670d\u52a1\u5668\u9519\u8bef<\/td>\n500<\/td>\n\u670d\u52a1\u5668\u9519\u8bef<\/td>\n<\/tr>\n
                            5xx<\/td>\n501<\/td>\n\u8bf7\u6c42\u8fd8\u6ca1\u6709\u88ab\u5b9e\u73b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
                            \n
                            \u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a\u4e00\u9762\u8981\u7684\u662f\u8986\u76d6\u9762\uff1a\u5c45\u4e2d\u548c BFC\u3001\u6e32\u67d3\u6d41\u7a0b\u3001\u4e8b\u4ef6\u4ee3\u7406\u3001\u5b8f\u5fae\u4efb\u52a1\u3001\u53bb\u91cd\u4e0e\u72b6\u6001\u7801\uff0c\u6bcf\u9898\u80fd\u5c55\u5f00\u51e0\u79cd\u5199\u6cd5\uff0c\u800c\u4e0d\u662f\u53ea\u62a5\u4e00\u4e2a\u540d\u8bcd\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
                            \u9762\u8bd5\u4e86\u51e0\u5bb6\u516c\u53f8\uff0c\u628a\u9898\u76ee\u6574\u7406\u5982\u4e0b\uff0c\u7b54\u6848\u4ec5\u4f9b\u53c2\u8003\u3002\u4e00\u9762\u504f\u57fa\u7840\uff0c\u5927\u90e8\u5206\u4f1a\u6216\u4f3c\u66fe\u76f8\u8bc6\u3002\u8fc7\u4e0e\u4e0d\u8fc7\uff0c\u770b\u7684\u662f\u57fa\u7840\u5168\u4e0d\u5168\u9762\u3001\u624e […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[105,128],"tags":[140],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2888"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2888"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2888\/revisions"}],"predecessor-version":[{"id":2892,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2888\/revisions\/2892"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}