{"id":246,"date":"2015-04-17T19:38:54","date_gmt":"2015-04-17T11:38:54","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=246"},"modified":"2026-08-18T12:09:30","modified_gmt":"2026-08-18T04:09:30","slug":"%e9%9d%a2%e5%90%91%e5%ad%97%e7%ac%a6%e7%9a%84%e8%be%93%e5%87%ba%e6%b5%81","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=246","title":{"rendered":"\u9762\u5411\u5b57\u7b26\u7684\u8f93\u51fa\u6d41"},"content":{"rendered":"
\n

\u9762\u5411\u5b57\u7b26\u7684\u8f93\u51fa\u6d41<\/strong>\u90fd\u662f Writer<\/code> \u7684\u5b50\u7c7b\u3002\u548c\u8f93\u5165\u4fa7\u4e00\u6837\uff0cWriter<\/code> \u662f\u62bd\u8c61\u7c7b\uff0c\u771f\u6b63\u5199\u51fa\u6587\u672c\u8981\u7528 FileWriter<\/code>\u3001BufferedWriter<\/code> \u8fd9\u4e9b\u5b50\u7c7b\u3002<\/p>\n

\u5199\u6587\u4ef6\u65f6\u5148\u6784\u9020\u8f93\u51fa\u6d41\u5bf9\u8c61\uff0c\u518d write()<\/code>\uff1b\u5e26\u7f13\u51b2\u7684\u5199\u6cd5\u8fd8\u8981\u5728\u7ed3\u675f\u524d flush()<\/code>\uff0c\u628a\u7f13\u51b2\u533a\u91cc\u5269\u4e0b\u7684\u5b57\u7b26\u771f\u6b63\u843d\u5230\u6587\u4ef6\u4e0a\u3002<\/p>\n

<\/p>\n

\"\"<\/a><\/p>\n

\u4e00\u3001Writer \u7684\u7c7b\u5c42\u6b21<\/h2>\n

\u7c7b\u5c42\u6b21\u7ed3\u6784\u5982\u4e0b\uff08\u539f\u6587\u56fe 10-5\uff09\uff1a<\/p>\n

\"\u2550\u255d\u2567\u0451<\/a><\/p>\n

\u4e3b\u8981\u5b50\u7c7b\u53ca\u8bf4\u660e\uff08\u539f\u6587\u8868 10-3\uff09\uff1a<\/p>\n

\"\u2550\u255d\u2567\u0451<\/a><\/p>\n

Writer<\/code> \u63d0\u4f9b\u7684\u65b9\u6cd5\uff08\u539f\u6587\u8868 10-4\uff09\uff1a<\/p>\n

\"\u2550\u255d\u2567\u0451<\/a><\/p>\n\n\n\n\n\n\n\n
\u7c7b<\/th>\n\u89d2\u8272<\/th>\n\u5173\u952e\u70b9<\/th>\n<\/tr>\n<\/thead>\n
FileWriter<\/code><\/td>\n\u8282\u70b9\u6d41<\/td>\n\u6309\u6587\u4ef6\u540d\u521b\u5efa\u53ef\u5199\u6d41\uff1b\u7b2c\u4e8c\u53c2\u6570\u4e3a true \u65f6\u8ffd\u52a0<\/td>\n<\/tr>\n
BufferedWriter<\/code><\/td>\n\u5904\u7406\u6d41<\/td>\n\u5199\u5165\u7f13\u51b2\u533a\uff0c\u7ed3\u675f\u524d\u8981 flush()<\/code><\/td>\n<\/tr>\n
newLine()<\/code><\/td>\n\u6362\u884c<\/td>\nwrite()<\/code> \u4e0d\u4f1a\u81ea\u52a8\u5199\u56de\u8f66\uff0c\u8de8\u5e73\u53f0\u6362\u884c\u9760\u5b83<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e8c\u3001\u7528 FileWriter \u5199\u5165\u6587\u4ef6<\/h2>\n

FileWriter<\/code> \u662f OutputStreamWriter<\/code> \u7684\u5b50\u7c7b\uff0c\u56e0\u6b64\u4e5f\u80fd\u4f7f\u7528 Writer<\/code> \u4e0e OutputStreamWriter<\/code> \u7684\u65b9\u6cd5\u3002\u6784\u9020\u540e\u518d\u8c03\u7528 write()<\/code>\uff1a<\/p>\n

public FileWriter(String name); \/\/ \u6839\u636e\u6587\u4ef6\u540d\u521b\u5efa\u53ef\u5199\u8f93\u51fa\u6d41\npublic FileWriter(String name, boolean a); \/\/ a \u4e3a true \u65f6\u8ffd\u52a0\u5230\u6587\u4ef6\u672b\u5c3e<\/code><\/pre>\n
\u3010\u4f8b 10-3\u3011\u628a ASCII \u53ef\u89c1\u5b57\u7b26\u5199\u5165\u6587\u4ef6\uff1a<\/p>\n
import java.io.*;\nclass ep10_3 {\n    public static void main(String args[]) {\n        try {\n            FileWriter a = new FileWriter(\"ep10_3.txt\");\n            for (int i = 32; i < 126; i++) {\n                a.write(i);\n            }\n            a.close();\n        } catch (IOException e) {}\n    }\n}<\/code><\/pre>\n
\u8fd0\u884c\u540e\u6253\u5f00 ep10_3.txt<\/code>\uff0c\u5185\u5bb9\u4e3a\uff1a<\/p>\n
!\"#$%&'()*+,-.\/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}<\/code><\/pre>\n
\u4e09\u3001\u7528 BufferedWriter \u590d\u5236\u6587\u4ef6<\/h2>\n
\u5148\u5efa FileWriter<\/code>\uff0c\u518d\u4ea4\u7ed9 BufferedWriter<\/code>\uff0c\u6700\u540e\u7528 flush()<\/code> \u6e05\u7a7a\u7f13\u51b2\u533a\uff1a<\/p>\n
public BufferedWriter(Writer out);\npublic BufferedWriter(Writer out, int size);<\/code><\/pre>\n
\u3010\u4f8b 10-4\u3011\u7528 BufferedWriter<\/code> \u505a\u6587\u4ef6\u590d\u5236\uff1a<\/p>\n
import java.io.*;\nclass ep10_4 {\n    public static void main(String args[]) {\n        String str = new String();\n        try {\n            BufferedReader in = new BufferedReader(new FileReader(\"ep10_4_a.txt\"));\n            BufferedWriter out = new BufferedWriter(new FileWriter(\"ep10_4_b.txt\"));\n            while ((str = in.readLine()) != null) {\n                System.out.println(str);\n                out.write(str);  \/\/ \u5199\u5165\u8fd9\u4e00\u884c\n                out.newLine();   \/\/ \u8865\u4e0a\u6362\u884c\n            }\n            out.flush();\n            in.close();\n            out.close();\n        } catch (IOException e) {\n            System.out.println(\"\u51fa\u73b0\u9519\u8bef\" + e);\n        }\n    }\n}<\/code><\/pre>\n
\u6ce8\u610f\uff1awrite()<\/code> \u5199\u5165\u4e00\u884c\u65f6\u4e0d\u4f1a<\/strong>\u5e26\u4e0a\u56de\u8f66\uff0c\u5fc5\u987b\u518d\u8c03 newLine()<\/code>\uff0c\u76ee\u6807\u6587\u4ef6\u624d\u80fd\u548c\u6e90\u6587\u4ef6\u884c\u7ed3\u6784\u4e00\u81f4\u3002<\/p>\n
\n
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\u9762\u5411\u5b57\u7b26\u7684\u8f93\u51fa\u6d41\u90fd\u662f Writer \u7684\u5b50\u7c7b\u3002\u548c\u8f93\u5165\u4fa7\u4e00\u6837\uff0cWriter \u662f\u62bd\u8c61\u7c7b\uff0c\u771f\u6b63\u5199\u51fa\u6587\u672c\u8981\u7528 FileW […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22],"tags":[41],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/246"}],"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=246"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/246\/revisions"}],"predecessor-version":[{"id":3533,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/246\/revisions\/3533"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}