{"id":729,"date":"2019-05-01T17:52:33","date_gmt":"2019-05-01T09:52:33","guid":{"rendered":"http:\/\/www.eait.co\/?p=729"},"modified":"2019-05-01T18:00:16","modified_gmt":"2019-05-01T10:00:16","slug":"%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/notes.coremix.net\/?p=729","title":{"rendered":"\u6587\u4ef6"},"content":{"rendered":"<div>\u6253\u5f00\/\u5173\u95ed\u00a0\u6587\u4ef6<\/div>\n<div>f = open(file_path,&#8217;r&#8217;)\u00a0 \u91cc\u9762\u8def\u5f84\u53ef\u4ee5\u76f4\u63a5\u5199\u811a\u672c\u6587\u4ef6\u5939\u4e0b\u7684\u6587\u4ef6<\/div>\n<div>f.close()<\/div>\n<div>\u5e26+\u53f7\u7684\u662f\u8bfb\u5199<\/div>\n<div>r\u65e0\u6cd5\u521b\u5efa\u65b0\u6587\u4ef6<\/div>\n<div>a\u662f\u8ffd\u52a0<\/div>\n<div>\u6bcf\u6b21\u8bfb\u53d6\u6216\u8005\u5199\u5165\u540e\uff0c\u6307\u9488\u4f1a\u79fb\u52a8\u5230\u76f8\u5e94\u7684\u7ed3\u5c3e<\/div>\n<div><\/div>\n<div>r\u00a0 \u00a0 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\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u7528\u4e8e\u8ffd\u52a0\uff0c\u5982\u679c\u6587\u4ef6\u5df2\u5b58\u5728\uff0c\u6587\u4ef6\u6307\u9488\u4f1a\u653e\u5728\u6587\u4ef6\u7ed3\u5c3e\uff08\u4e5f\u5c31\u662f\u8bf4\uff0c\u65b0\u7684\u5185\u5bb9\u5c06\u4f1a\u88ab\u5199\u5230\u5df2\u6709\u7684\u5185\u5bb9\u4e4b\u540e\uff09\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u521b\u5efa\u65b0\u6587\u4ef6\u8fdb\u884c\u5199\u5165<\/div>\n<div>a+\u00a0 \u00a0 \u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\u7528\u4e8e\u8bfb\u5199\uff0c\u5982\u679c\u6587\u4ef6\u5df2\u5b58\u5728\uff0c\u6587\u4ef6\u6307\u9488\u4f1a\u653e\u5728\u6587\u4ef6\u7ed3\u5c3e\uff0c\u6587\u4ef6\u6253\u5f00\u65f6\u4f1a\u662f\u8ffd\u52a0\u6a21\u5f0f\uff0c\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u521b\u5efa\u65b0\u6587\u4ef6\u7528\u4e8e\u8bfb\u5199\uff08\u597d\u50cf\u6ca1\u4ec0\u4e48\u533a\u522b\uff1f\u4e00\u4e2a\u8ffd\u52a0\u4e00\u4e2a\u8ffd\u52a0\u8bfb\u5199 \uff09<\/div>\n<div>\u5176\u4ed6\u6a21\u5f0f\uff1a\u00a0\u00a0 \u00a0 rb\u00a0 \u00a0 rb+\u00a0 \u00a0 wb\u00a0 \u00a0 wb+\u00a0 \u00a0 ab\u00a0 \u00a0 ab+<\/div>\n<div>\u52a0\u4e2ab\u7684\u4f5c\u7528\uff1a\u4ee5\u4e8c\u8fdb\u5236\u7684\u683c\u5f0f\u6253\u5f00\u6587\u4ef6\uff0c\u8fdb\u884c\u4e0a\u8ff0\u64cd\u4f5c<\/div>\n<div><\/div>\n<div><\/div>\n<div>\u8bfb\u53d6\u5199\u5165\u6587\u4ef6\uff1a<\/div>\n<div>\u8bfb\u53d6\u6307\u5b9a\u6587\u4ef6\u5185\u5bb9\uff1a f.read()<\/div>\n<div>\u8bfb\u53d6\u4e00\u884c\u5185\u5bb9\uff1a\u00a0 \u00a0 f.readline()<\/div>\n<div>\u8bfb\u53d6\u591a\u884c\u5185\u5bb9\uff1a\u00a0 \u00a0f.readlines()<\/div>\n<div>\u5199\u5165\u5185\u5bb9\uff1a\u00a0 \u00a0 f.write(data)<\/div>\n<div>\u5199\u5165\u591a\u884c\u5185\u5bb9\uff08\u9700\u8981\u81ea\u5df1\u52a0\u6362\u884c\u7b26\uff09\uff1a\u00a0 \u00a0 f.writelines(lines)<\/div>\n<div>\u7acb\u5373\u5237\u7f13\u51b2\uff1a\u00a0 \u00a0 f.flush()<\/div>\n<div>\u83b7\u5f97\u6e38\u6807\u4f4d\u7f6e:\u00a0 \u00a0 f.tell()#\u6362\u884c\u7b26\u5360\u4e00\u4e2a\u4f4d\u7f6e\uff0c\u6c49\u5b57\u5360\u4e24\u4e2a\uff0c\u5b57\u6bcd\u5360\u4e00\u4e2a<\/div>\n<div>\u8c03\u6574\u6e38\u6807\u4f4d\u7f6e\uff1a\u00a0 \u00a0 f.seek(position)<\/div>\n<div><\/div>\n<div>\u6587\u4ef6\u7684\u5199\u5165\u548c\u8bfb\u53d6\u65f6\u5fc5\u987b\u8981\u5341\u5206\u719f\u7ec3\u7684\u5185\u5bb9<\/div>\n<div><\/div>\n<div><\/div>\n<div>with &#8230;\u00a0open(file_path,mode = &#8216;r&#8217;) as f:<\/div>\n<div>\u00a0 \u00a0 f.xxx<\/div>\n<div>\u00a0 \u00a0 f.xx<\/div>\n<div>\u00a0 \u00a0 \u5bf9f\u8fdb\u884c\u4e00\u7cfb\u5217\u7684\u64cd\u4f5c<\/div>\n<div>\u8df3\u51fawith\u8bed\u53e5\u7684\u65f6\u5019\u81ea\u52a8\u6267\u884cf.close()\u64cd\u4f5c<\/div>\n<div><\/div>\n<div>\u6587\u4ef6\u8bbf\u95ee\u7f16\u7801<\/div>\n<div>open(file_path,mode = &#8216;r&#8217;,encoding = None)<\/div>\n<div>open(file_path, mode = &#8216;r&#8217;,encoding =None,errors = None)<\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<div>os\u6a21\u5757\u7684\u76ee\u5f55\u53ca\u6587\u4ef6\u64cd\u4f5c\uff1a<\/div>\n<div>\u663e\u793a\u5f53\u524d\u8def\u5f84\uff1a\u00a0 \u00a0os.getcwd()<\/div>\n<div>\u5c55\u793a\u5f53\u524d\u7684\u76ee\u5f55\u5185\u5bb9\uff1a\u00a0 \u00a0 os.listdir(path)<\/div>\n<div>\u6539\u53d8\u5f53\u524d\u8def\u5f84:\u00a0 \u00a0 os.chdir(path)<\/div>\n<div>\u521b\u5efa\u76ee\u5f55\uff1a\u00a0 \u00a0 os.mkdir(\u6587\u4ef6\u540d)<\/div>\n<div>\u5220\u9664\u76ee\u5f55\uff1a\u00a0 \u00a0 os.rmdir(\u6587\u4ef6\u540d)<\/div>\n<div>\u4f7f\u7528Linux\u547d\u4ee4\uff1a\u00a0 \u00a0 os.system()<\/div>\n<div>\u5220\u9664\u6587\u4ef6\uff1a\u00a0 \u00a0 os.remove(\u6587\u4ef6\u540d)<\/div>\n<div>\u91cd\u547d\u540d\uff1a\u00a0 \u00a0 so.rename(&#8216;oldname&#8217;,&#8217;newname&#8217;)<\/div>\n<div><\/div>\n<div>os.path\u6a21\u5757\u7684\u8def\u5f84\u64cd\u4f5c\uff1a<\/div>\n<div>\u8def\u5f84\u62fc\u63a5\uff1aos.path.join(path1,path2,path3&#8230;)<\/div>\n<div>\u6240\u5728\u76ee\u5f55\/\u7236\u76ee\u5f55\uff1a os.path.dirname<\/div>\n<div>\u57fa\u672c\u77ed\u8def\u5f84\uff1aos.path.basename<\/div>\n<div>\u7edd\u5bf9\u8def\u5f84\uff1a\u00a0 \u00a0 os.path.abspath<\/div>\n<div>\u76f8\u5bf9\u8def\u5f84\uff1a\u00a0 \u00a0 os.path.relpath<\/div>\n<div>\u8d44\u6e90\u5927\u5c0f\uff1a\u00a0 \u00a0 os.path.getsize<\/div>\n<div>\u8d44\u6e90\u65f6\u95f4\uff1a\u00a0 \u00a0 os.path.gtctime\/\u521b\u5efagetatime\u8bbf\u95eegetmtime\u4fee\u6539\u65f6\u95f4<\/div>\n<div>\u8def\u5f84\u662f\u5426\u5b58\u5728:\u00a0 \u00a0 os.path.exits<\/div>\n<div>\u662f\u5426\u662f\u76ee\u5f55:\u00a0 \u00a0 os.path.isdir<\/div>\n<div>\u662f\u5426\u662f\u6587\u4ef6\uff1a\u00a0 \u00a0 os.path.isfile<\/div>\n<div>\u662f\u5426\u662f\u7edd\u5bf9\u8def\u5f84\uff1a\u00a0 \u00a0os.path.isabs<\/div>\n<div><\/div>\n<div>\u79fb\u52a8\u6587\u4ef6\u548c\u6587\u4ef6\u5939\uff1a<\/div>\n<div>2.\u590d\u5236\u6587\u4ef6\uff1a<\/div>\n<div><\/div>\n<div>shutil.copyfile(\u201coldfile\u201d,\u201dnewfile\u201d) #oldfile\u548cnewfile\u90fd\u53ea\u80fd\u662f\u6587\u4ef6<\/div>\n<div><\/div>\n<div>shutil.copy(\u201coldfile\u201d,\u201dnewfile\u201d) #oldfile\u53ea\u80fd\u662f\u6587\u4ef6\u5939\uff0cnewfile\u53ef\u4ee5\u662f\u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u662f\u76ee\u6807\u76ee\u5f55<\/div>\n<div><\/div>\n<div>3.\u590d\u5236\u6587\u4ef6\u5939\uff1a<\/div>\n<div><\/div>\n<div>4.shutil.copytree(\u201colddir\u201d,\u201dnewdir\u201d) #olddir\u548cnewdir\u90fd\u53ea\u80fd\u662f\u76ee\u5f55\uff0c\u4e14newdir\u5fc5\u987b\u4e0d\u5b58\u5728<\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n<div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u6253\u5f00\/\u5173\u95ed\u00a0\u6587\u4ef6 f = open(file_path,&#8217;r&#8217;)\u00a0 \u91cc\u9762\u8def\u5f84\u53ef\u4ee5\u76f4\u63a5\u5199 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,23],"tags":[],"class_list":["post-729","post","type-post","status-publish","format-standard","hentry","category-java","category-python_note"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=729"}],"version-history":[{"count":1,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/729\/revisions"}],"predecessor-version":[{"id":730,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/729\/revisions\/730"}],"wp:attachment":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}