{"id":441,"date":"2008-11-08T23:01:12","date_gmt":"2008-11-08T15:01:12","guid":{"rendered":"http:\/\/www.slyar.com\/blog\/?p=441"},"modified":"2014-04-22T14:00:55","modified_gmt":"2014-04-22T06:00:55","slug":"scanf-return-value","status":"publish","type":"post","link":"http:\/\/www.slyar.com\/blog\/scanf-return-value.html","title":{"rendered":"C\u8bed\u8a00\u4e2d scanf()\u7684\u8fd4\u56de\u503c\u662f\u6210\u529f\u8bfb\u5165\u53c2\u6570\u7684\u4e2a\u6570"},"content":{"rendered":"<p>\u6587\u7ae0\u4f5c\u8005\uff1a<span style=\"color: #0000ff;\">\u59dc\u5357(Slyar) <\/span>\u6587\u7ae0\u6765\u6e90\uff1aSlyar Home (<a title=\"Slyar\" href=\"http:\/\/www.slyar.com\" target=\"_blank\">www.slyar.com<\/a>) \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff0c\u8c22\u8c22\u5408\u4f5c\u3002<\/p>\n<p>\u5fd8\u4e86\u662f\u8c01\u524d\u5929\u95ee\u7684\u4e86\uff0c\u672c\u6765\u662f\u6253\u7b97\u6628\u5929\u5199\u7684\uff0c\u4e0d\u8fc7\u6628\u5929\u6709\u8bb2\u5ea7\u5199\uff0c\u4e8e\u662f\u4e4e\u5c31\u6539\u4eca\u5929\u5199\u4e86\u3002<\/p>\n<p>\u4ed6\u95ee\u6211\u4e3a\u4ec0\u4e48 while(scanf(\"%d\",&amp;a)!=0) \u8fd9\u6837\u7684\u8bed\u53e5\u4e0d\u80fd\u4e2d\u65ad\u7a0b\u5e8f\u3002OK\uff0c\u6211\u4eec\u77e5\u9053while()\u7684\u53c2\u6570\u662f\u4e00\u4e2a\u503c\uff0c\u800c\u8fd9\u4e2a\u503c\u662fscanf()\u51fd\u6570\u8fd4\u56de\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u5230MSDN\u91cc\u9762\u770b\u4e00\u4e0b\u76f8\u5173\u7684\u8bf4\u660e\uff1a<\/p>\n<p>Both scanf and wscanf <span style=\"color: #ff0000;\">return the number of fields successfully converted and assigned<\/span>; the return value does not include fields that were read but not assigned. A return value of 0 indicates that no fields were assigned. The return value is EOF for an error or if the end-of-file character or the end-of-string character is encountered in the first attempt to read a character.<\/p>\n<p>\u901a\u8fc7\u8fd9\u6bb5\u8bdd\uff0c\u6211\u4eec\u53ef\u4ee5\u77e5\u9053scanf()\u7684\u8fd4\u56de\u503c\u5e76\u4e0d\u662f\u53c2\u6570\u7684\u503c\uff0c\u800c\u662f\u6210\u529f\u8bfb\u5165\u53c2\u6570\u7684\u4e2a\u6570\uff0c\u4e3e\u4f8b\u8bf4\u660e\uff1a<\/p>\n<p><span style=\"color: #0000ff;\">scanf(\"%d%d\",&amp;a, &amp;b);<\/span><\/p>\n<p><span style=\"color: #ff0000;\">\u5982\u679ca\u548cb\u90fd\u88ab\u6210\u529f\u8bfb\u5165\uff0cscanf()\u7684\u8fd4\u56de\u503c\u662f2<\/span><\/p>\n<p><span style=\"color: #ff0000;\">\u5982\u679c\u53ea\u6709a\u88ab\u6210\u529f\u8bfb\u5165\u6216\u8005\u53ea\u6709b\u88ab\u6210\u529f\u8bfb\u5165\uff0cscanf()\u7684\u8fd4\u56de\u503c\u4e3a1<\/span><\/p>\n<p><span style=\"color: #ff0000;\">\u5982\u679ca\u548cb\u90fd\u672a\u88ab\u6210\u529f\u8bfb\u5165\uff0cscanf()\u7684\u8fd4\u56de\u503c\u4e3a0<\/span><\/p>\n<p><span style=\"color: #ff0000;\">\u5982\u679c\u9047\u5230\u9519\u8bef\u6216\u9047\u5230End Of File\uff0cscanf()\u7684\u8fd4\u56de\u503c\u4e3aEOF\u3002<\/span><\/p>\n<p>\u6240\u4ee5\u5462\uff0c\u6587\u7ae0\u5f00\u5934\u63d0\u5230\u7684\u90a3\u53e5\u4ee3\u7801\u662f\u4e0d\u80fd\u6b63\u5e38\u4e2d\u65ad\u7a0b\u5e8f\u7684\u3002<\/p>\n<p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"http:\/\/www.slyar.com\/blog\">Slyar Home<\/a> &raquo; <a href=\"http:\/\/www.slyar.com\/blog\/scanf-return-value.html\">C\u8bed\u8a00\u4e2d scanf()\u7684\u8fd4\u56de\u503c\u662f\u6210\u529f\u8bfb\u5165\u53c2\u6570\u7684\u4e2a\u6570<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u4f5c\u8005\uff1a\u59dc\u5357(Slyar) \u6587\u7ae0\u6765\u6e90\uff1aSlyar Home (www.slyar.com) \u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff0c\u8c22\u8c22\u5408\u4f5c\u3002 \u5fd8\u4e86\u662f\u8c01\u524d\u5929\u95ee\u7684\u4e86\uff0c\u672c\u6765\u662f\u6253\u7b97\u6628\u5929\u5199\u7684\uff0c\u4e0d\u8fc7\u6628\u5929\u6709\u8bb2\u5ea7\u5199\uff0c\u4e8e\u662f\u4e4e\u5c31\u6539\u4eca\u5929\u5199\u4e86\u3002 \u4ed6\u95ee\u6211\u4e3a\u4ec0\u4e48 while(scanf(\"%d\",&#038;a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[304],"class_list":["post-441","post","type-post","status-publish","format-standard","hentry","category-programing","tag-304"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - 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