{"id":240,"date":"2015-04-17T19:35:58","date_gmt":"2015-04-17T11:35:58","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=240"},"modified":"2026-08-15T16:42:14","modified_gmt":"2026-08-15T08:42:14","slug":"%e9%9d%a2%e5%90%91%e5%ad%97%e7%ac%a6%e7%9a%84%e8%be%93%e5%85%a5%e6%b5%81","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=240","title":{"rendered":"\u9762\u5411\u5b57\u7b26\u7684\u8f93\u5165\u6d41"},"content":{"rendered":"<p><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-3498\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image.png\" alt=\"\" width=\"2151\" height=\"1105\" srcset=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image.png 2151w, https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image-768x395.png 768w, https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image-1536x789.png 1536w, https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image-2048x1052.png 2048w\" sizes=\"(max-width: 2151px) 100vw, 2151px\" \/><\/a><\/p>\n<p>\u5b57\u7b26\u6d41\u662f\u9488\u5bf9\u5b57\u7b26\u6570\u636e\u7684\u7279\u70b9\u8fdb\u884c\u8fc7\u4f18\u5316\u7684\uff0c\u56e0\u800c\u63d0\u4f9b\u4e00\u4e9b\u9762\u5411\u5b57\u7b26\u7684\u6709\u7528\u7279\u6027\uff0c\u5b57\u7b26\u6d41\u7684\u6e90\u6216\u76ee\u6807\u901a\u5e38\u662f\u6587\u672c\u6587\u4ef6\u3002 Reader\u548cWriter\u662fjava.io\u5305\u4e2d\u6240\u6709\u5b57\u7b26\u6d41\u7684\u7236\u7c7b\u3002\u7531\u4e8e\u5b83\u4eec\u90fd\u662f\u62bd\u8c61\u7c7b\uff0c\u6240\u4ee5\u5e94\u4f7f\u7528\u5b83\u4eec\u7684\u5b50\u7c7b\u6765\u521b\u5efa\u5b9e\u4f53\u5bf9\u8c61\uff0c\u5229\u7528<br \/>\n<!--more--><br \/>\n\u5bf9\u8c61\u6765\u5904\u7406\u76f8\u5173\u7684\u8bfb\u5199\u64cd\u4f5c\u3002Reader\u548cWriter\u7684\u5b50\u7c7b\u53c8\u53ef\u4ee5\u5206\u4e3a\u4e24\u5927\u7c7b\uff1a\u4e00\u7c7b\u7528\u6765\u4ece\u6570\u636e\u6e90\u8bfb\u5165\u6570\u636e\u6216\u5f80\u76ee\u7684\u5730\u5199\u51fa\u6570\u636e\uff08\u79f0\u4e3a\u8282\u70b9\u6d41\uff09\uff0c\u53e6\u4e00\u7c7b\u5bf9\u6570\u636e\u6267\u884c\u67d0\u79cd\u5904\u7406\uff08\u79f0\u4e3a\u5904\u7406\u6d41\uff09\u3002<\/p>\n<p>\u9762\u5411\u5b57\u7b26\u7684\u8f93\u5165\u6d41\u7c7b\u90fd\u662fReader\u7684\u5b50\u7c7b\uff0c\u5176\u7c7b\u5c42\u6b21\u7ed3\u6784\u5982\u56fe10-2\u6240\u793a\u3002<\/p>\n<p><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2015\/04\/\u2550\u255d\u2567\u0451.bmp\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-241\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2015\/04\/\u2550\u255d\u2567\u0451.bmp\" alt=\"\u2550\u255d\u2567\u0451\" width=\"454\" height=\"244\" \/><\/a><br \/>\n\u8868 10-1 \u5217\u51fa\u4e86 Reader \u7684\u4e3b\u8981\u5b50\u7c7b\u53ca\u8bf4\u660e\u3002<\/p>\n<p><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2015\/04\/\u2550\u255d\u2567\u0451-2.bmp\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-242\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2015\/04\/\u2550\u255d\u2567\u0451-2.bmp\" alt=\"\u2550\u255d\u2567\u0451 (2)\" width=\"390\" height=\"361\" \/><\/a><br \/>\n<a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2015\/04\/\u2550\u255d\u2567\u0451-3.bmp\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-243\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2015\/04\/\u2550\u255d\u2567\u0451-3.bmp\" alt=\"\u2550\u255d\u2567\u0451 (3)\" width=\"468\" height=\"357\" \/><\/a><br \/>\nFileReader \u7c7b\u662f Reader \u5b50\u7c7b InputStreamReader \u7c7b\u7684\u5b50\u7c7b\uff0c\u56e0\u6b64 FileReader \u7c7b\u65e2\u53ef\u4ee5\u4f7f\u7528Reader \u7c7b\u7684\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u4f7f\u7528 InputStreamReader \u7c7b\u7684\u65b9\u6cd5\u6765\u521b\u5efa\u5bf9\u8c61\u3002<br \/>\n\u4f7f\u7528 FileReader \u7c7b\u8bfb\u53d6\u6587\u4ef6<\/p>\n<p>\u5728\u4f7f\u7528 FileReader \u7c7b\u8bfb\u53d6\u6587\u4ef6\u65f6\uff0c\u5fc5\u987b\u5148\u8c03\u7528 FileReader()\u6784\u9020\u65b9\u6cd5\u521b\u5efa FileReader \u7c7b\u7684\u5bf9\u8c61\uff0c\u518d\u8c03\u7528 read()\u65b9\u6cd5\u3002FileReader \u6784\u9020\u65b9\u6cd5\u7684\u683c\u5f0f\u4e3a\uff1a<br \/>\npublic FileReader(String name); \/\/\u6839\u636e\u6587\u4ef6\u540d\u521b\u5efa\u4e00\u4e2a\u53ef\u8bfb\u53d6\u7684\u8f93\u5165\u6d41\u5bf9\u8c61<\/p>\n<p>\u3010\u4f8b 10-1\u3011\u5229\u7528 FileReader \u7c7b\u8bfb\u53d6\u7eaf\u6587\u672c\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<pre>[java]import java.io.*;\nclass ep10_1{\n\u00a0\u00a0\u00a0 public static void main(String args[]) throws IOException{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 char a[]=new char[1000]; \/\/\u521b\u5efa\u53ef\u5bb9\u7eb3 1000 \u4e2a\u5b57\u7b26\u7684\u6570\u7ec4\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FileReader b=new FileReader(&quot;ep10_1.txt&quot;);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int num=b.read(a); \/\/\u5c06\u6570\u636e\u8bfb\u5165\u5230\u6570\u7ec4 a \u4e2d\uff0c\u5e76\u8fd4\u56de\u5b57\u7b26\u6570\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 String str=new String(a,0,num); \/\/\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(&quot;\u8bfb\u53d6\u7684\u5b57\u7b26\u4e2a\u6570\u4e3a\uff1a&quot;+num+&quot;,\u5185\u5bb9\u4e3a\uff1a\\n&quot;);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(str);\n\u00a0\u00a0\u00a0 }\n}[\/java]<\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cJava \u628a\u4e00\u4e2a\u6c49\u5b57\u6216\u82f1\u6587\u5b57\u6bcd\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u7b26\u5bf9\u5f85\uff0c\u56de\u8f66\u6216\u6362\u884c\u4f5c\u4e3a\u4e24\u4e2a\u5b57\u7b26\u5bf9\u5f85\u3002<br \/>\n\u4f7f\u7528 BufferedReader \u7c7b\u8bfb\u53d6\u6587\u4ef6<\/p>\n<p>BufferedReader \u7c7b\u662f\u7528\u6765\u8bfb\u53d6\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u3002\u4f7f\u7528\u65f6\u5fc5\u987b\u521b\u5efa FileReader \u7c7b\u5bf9\u8c61\uff0c\u518d\u4ee5\u8be5\u5bf9\u8c61\u4e3a\u53c2\u6570\u521b\u5efa BufferedReader \u7c7b\u7684\u5bf9\u8c61\u3002BufferedReader \u7c7b\u6709\u4e24\u4e2a\u6784\u9020\u65b9\u6cd5\uff0c\u5176\u683c\u5f0f\u4e3a\uff1a<br \/>\npublic BufferedReader(Reader in); \/\/\u521b\u5efa\u7f13\u51b2\u533a\u5b57\u7b26\u8f93\u5165\u6d41<br \/>\npublic BufferedReader(Reader in,int size); \/\/\u521b\u5efa\u8f93\u5165\u6d41\u5e76\u8bbe\u7f6e\u7f13\u51b2\u533a\u5927\u5c0f<\/p>\n<p>\u3010\u4f8b 10-2\u3011\u5229\u7528 BufferedReader \u7c7b\u8bfb\u53d6\u7eaf\u6587\u672c\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n<pre>[java]import java.io.*;\nclass ep10_2{\n\u00a0\u00a0\u00a0 public static void main(String args[]) throws IOException{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 String OneLine;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 int count=0;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 try{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FileReader a=new FileReader(&quot;ep10_1.txt&quot;);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 BufferedReader b=new BufferedReader(a);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 while((OneLine=b.readLine())!=null){ \/\/\u6bcf\u6b21\u8bfb\u53d6 1 \u884c\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 count++; \/\/\u8ba1\u7b97\u8bfb\u53d6\u7684\u884c\u6570\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(OneLine);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(&quot;\\n \u5171\u8bfb\u53d6\u4e86&quot;+count+&quot;\u884c&quot;);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 b.close();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 catch(IOException io){\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(&quot;\u51fa\u9519\u4e86!&quot;+io);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0\u00a0\u00a0 }\n}\n[\/java]<\/pre>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u6267\u884c read()\u6216 write()\u65b9\u6cd5\u65f6\uff0c\u53ef\u80fd\u7531\u4e8e IO \u9519\u8bef\uff0c\u7cfb\u7edf\u629b\u51fa IOException \u5f02\u5e38\uff0c\u9700\u8981\u5c06\u6267\u884c\u8bfb\u5199\u64cd\u4f5c\u7684\u8bed\u53e5\u5305\u62ec\u5728 try \u5757\u4e2d\uff0c\u5e76\u901a\u8fc7\u76f8\u5e94\u7684 catch \u5757\u6765\u5904\u7406\u53ef\u80fd\u4ea7\u751f\u7684\u5f02\u5e38\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b57\u7b26\u6d41\u662f\u9488\u5bf9\u5b57\u7b26\u6570\u636e\u7684\u7279\u70b9\u8fdb\u884c\u8fc7\u4f18\u5316\u7684\uff0c\u56e0\u800c\u63d0\u4f9b\u4e00\u4e9b\u9762\u5411\u5b57\u7b26\u7684\u6709\u7528\u7279\u6027\uff0c\u5b57\u7b26\u6d41\u7684\u6e90\u6216\u76ee\u6807\u901a\u5e38\u662f\u6587\u672c\u6587\u4ef6\u3002 Re [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22],"tags":[],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/240"}],"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=240"}],"version-history":[{"count":4,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/240\/revisions"}],"predecessor-version":[{"id":3534,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/240\/revisions\/3534"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}