{"id":246,"date":"2015-04-17T19:38:54","date_gmt":"2015-04-17T11:38:54","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=246"},"modified":"2026-08-15T16:41:04","modified_gmt":"2026-08-15T08:41:04","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":"

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

\u9762\u5411\u5b57\u7b26\u7684\u8f93\u51fa\u6d41\u90fd\u662f\u7c7b Writer \u7684\u5b50\u7c7b\uff0c\u5176\u7c7b\u5c42\u6b21\u7ed3\u6784\u5982\u56fe 10-5 \u6240\u793a\u3002
\n<\/p>\n

\"\u2550\u255d\u2567\u0451<\/a>
\n\u8868 10-3 \u5217\u51fa\u4e86 Writer \u7684\u4e3b\u8981\u5b50\u7c7b\u53ca\u8bf4\u660e\u3002
\n\"\u2550\u255d\u2567\u0451<\/a><\/p>\n

Writer \u6240\u63d0\u4f9b\u7684\u65b9\u6cd5\u5982\u8868 10-4 \u6240\u793a\u3002<\/p>\n

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

\u4f7f\u7528 FileWriter \u7c7b\u5199\u5165\u6587\u4ef6<\/p>\n

FileWriter \u7c7b\u662f Writer \u5b50\u7c7b OutputStreamWriter \u7c7b\u7684\u5b50\u7c7b\uff0c\u56e0\u6b64 FileWriter \u7c7b\u65e2\u53ef\u4ee5\u4f7f\u7528 Writer\u7c7b\u7684\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u4f7f\u7528 OutputStreamWriter \u7c7b\u7684\u65b9\u6cd5\u6765\u521b\u5efa\u5bf9\u8c61\u3002<\/p>\n

\u5728\u4f7f\u7528 FileWriter \u7c7b\u5199\u5165\u6587\u4ef6\u65f6\uff0c\u5fc5\u987b\u5148\u8c03\u7528 FileWriter()\u6784\u9020\u65b9\u6cd5\u521b\u5efa FileWriter \u7c7b\u7684\u5bf9\u8c61\uff0c\u518d\u8c03\u7528 writer()\u65b9\u6cd5\u3002FileWriter \u6784\u9020\u65b9\u6cd5\u7684\u683c\u5f0f\u4e3a\uff1a
\npublic FileWriter(String name); \/\/\u6839\u636e\u6587\u4ef6\u540d\u521b\u5efa\u4e00\u4e2a\u53ef\u5199\u5165\u7684\u8f93\u51fa\u6d41\u5bf9\u8c61
\npublic FileWriter(String name,Boolean a); \/\/a \u4e3a\u771f\uff0c\u6570\u636e\u5c06\u8ffd\u52a0\u5728\u6587\u4ef6\u540e\u9762<\/p>\n

\u3010\u4f8b 10-3\u3011\u5229\u7528 FileWriter \u7c7b\u5c06 ASC\u2161\u5b57\u7b26\u5199\u5165\u5230\u6587\u4ef6\u4e2d\u3002<\/p>\n

[java]import java.io.*;\nclass ep10_3{\n\u00a0\u00a0\u00a0 public static void main(String args[]){\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 try{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 FileWriter a=new FileWriter("ep10_3.txt");\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(int i=32;i&lt;126;i++){\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 a.write(i);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 a.close();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 catch(IOException e){}\n\u00a0\u00a0\u00a0 }\n}[\/java]<\/pre>\n
\u8fd0\u884c\u540e\u7a0b\u5e8f\u540e\uff0c\u6253\u5f00 ep10_3.txt \u6587\u4ef6\uff0c\u663e\u793a\u5185\u5bb9\u4e3a\uff1a
\n!”#$%&'()*+,-.\/0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}
\n\u4f7f\u7528 BufferedWriter \u7c7b\u5199\u5165\u6587\u4ef6<\/p>\n
BufferedWriter \u7c7b\u662f\u7528\u6765\u5c06\u6570\u636e\u5199\u5165\u5230\u7f13\u51b2\u533a\u3002\u4f7f\u7528\u65f6\u5fc5\u987b\u521b\u5efa FileWriter \u7c7b\u5bf9\u8c61\uff0c\u518d\u4ee5\u8be5\u5bf9\u8c61\u4e3a\u53c2\u6570\u521b\u5efa BufferedWriter \u7c7b\u7684\u5bf9\u8c61\uff0c\u6700\u540e\u9700\u8981\u7528 flush()\u65b9\u6cd5\u5c06\u7f13\u51b2\u533a\u6e05\u7a7a\u3002BufferedWriter\u7c7b\u6709\u4e24\u4e2a\u6784\u9020\u65b9\u6cd5\uff0c\u5176\u683c\u5f0f\u4e3a\uff1a
\npublic BufferedWriter(Writer out); \/\/\u521b\u5efa\u7f13\u51b2\u533a\u5b57\u7b26\u8f93\u51fa\u6d41
\npublic BufferedWriter(Writer out,int size); \/\/\u521b\u5efa\u8f93\u51fa\u6d41\u5e76\u8bbe\u7f6e\u7f13\u51b2\u533a\u5927\u5c0f<\/p>\n
\u3010\u4f8b 10-4\u3011\u5229\u7528 BufferedWriter \u7c7b\u8fdb\u884c\u6587\u4ef6\u590d\u5236\u3002<\/p>\n
[java]import java.io.*;\nclass ep10_4{\n\u00a0\u00a0\u00a0 public static void main(String args[]){\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 String str=new String();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 try{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 BufferedReader in=new BufferedReader(new FileReader("ep10_4_a.txt"));\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 BufferedWriter out=new BufferedWriter(new FileWriter("ep10_4_b.txt"));\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 while((str=in.readLine())!=null){\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(str);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 out.write(str);  \/\/\u5c06\u8bfb\u53d6\u5230\u7684 1 \u884c\u6570\u636e\u5199\u5165\u8f93\u51fa\u6d41\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 out.newLine();  \/\/\u5199\u5165\u6362\u884c\u7b26\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 out.flush();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 in.close();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 out.close();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 catch(IOException e){\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("\u51fa\u73b0\u9519\u8bef"+e);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\n\u00a0\u00a0\u00a0 }\n}[\/java]<\/pre>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8c03\u7528 out \u5bf9\u8c61\u7684 write()\u65b9\u6cd5\u5199\u5165\u6570\u636e\u65f6\uff0c\u4e0d\u4f1a\u5199\u5165\u56de\u8f66\uff0c\u56e0\u6b64\u9700\u8981\u4f7f\u7528newLine()\u65b9\u6cd5\u5728\u6bcf\u884c\u6570\u636e\u540e\u52a0\u5165\u56de\u8f66\uff0c\u4ee5\u4fdd\u8bc1\u76ee\u6807\u6587\u4ef6\u4e0e\u6e90\u6587\u4ef6\u76f8\u4e00\u81f4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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