{"id":2864,"date":"2025-06-03T16:50:35","date_gmt":"2025-06-04T09:34:35","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=2864"},"modified":"2025-06-04T16:50:35","modified_gmt":"2025-06-04T09:34:35","slug":"python%e4%b8%ad%e7%9a%84tell%e5%87%bd%e6%95%b8%ef%bc%9a%e6%8e%8c%e6%8f%a1%e6%96%87%e4%bb%b6%e8%ae%80-%e5%af%ab%e6%8c%87%e9%87%9d%e7%9a%84%e7%95%b6%e5%89%8d%e4%bd%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/python%e4%b8%ad%e7%9a%84tell%e5%87%bd%e6%95%b8%ef%bc%9a%e6%8e%8c%e6%8f%a1%e6%96%87%e4%bb%b6%e8%ae%80-%e5%af%ab%e6%8c%87%e9%87%9d%e7%9a%84%e7%95%b6%e5%89%8d%e4%bd%8d%e7%bd%ae\/","title":{"rendered":"\u5168\u9762\u638c\u63e1 Python \u4e2d\u7684 `tell()` \u51fd\u6578\uff1a\u6587\u4ef6\u8b80\/\u5beb\u6307\u91dd\u7684\u7cbe\u78ba\u63a7\u5236\u8207\u5be6\u7528\u7bc4\u4f8b"},"content":{"rendered":"

<\/p>\n

Python \u4e2d\u7684 `tell()` \u51fd\u6578<\/h1>\n

\u5728 Python \u4e2d\uff0c`tell()` \u51fd\u6578\u662f\u7528\u4f86\u8fd4\u56de\u6587\u4ef6\u8b80\/\u5beb\u6307\u91dd\u7684\u7576\u524d\u4f4d\u7f6e\u7684\u95dc\u9375\u5de5\u5177\u3002\u9019\u500b\u51fd\u6578\u4e0d\u50c5\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u4e86\u89e3\u6307\u91dd\u7684\u4f4d\u7f6e\uff0c\u9084\u53ef\u4ee5\u6aa2\u67e5\u6587\u4ef6\u662f\u5426\u5df2\u7d93\u88ab\u5b8c\u6574\u8b80\u53d6\u3002\u4ee5\u4e0b\u5c07\u4ecb\u7d39 `tell()` \u51fd\u6578\u7684\u6700\u65b0\u7528\u6cd5\u53ca\u5176\u6700\u4f73\u5be6\u8e10\uff0c\u5e6b\u52a9\u4f60\u5728\u6587\u4ef6\u8655\u7406\u4e2d\u66f4\u52a0\u5f97\u5fc3\u61c9\u624b\u3002<\/p>\n

\u4f7f\u7528 `tell()` \u51fd\u6578\u7684\u57fa\u672c\u6b65\u9a5f<\/h2>\n

\u5728\u4f7f\u7528 `tell()` \u51fd\u6578\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u958b\u555f\u4e00\u500b\u6587\u4ef6\uff0c\u4e26\u5c07\u6587\u4ef6\u8b80\/\u5beb\u6307\u91dd\u79fb\u52d5\u5230\u6307\u5b9a\u7684\u4f4d\u7f6e\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u4f7f\u7528\u6b65\u9a5f\uff1a<\/p>\n

1. \u958b\u555f\u6587\u4ef6
\n2. \u4f7f\u7528 `seek()` \u51fd\u6578\u79fb\u52d5\u6307\u91dd
\n3. \u8abf\u7528 `tell()` \u51fd\u6578\u7372\u53d6\u7576\u524d\u4f4d\u7f6e<\/p>\n

\u4ee5\u4e0b\u662f\u5177\u9ad4\u7684\u5be6\u4f5c\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\n# \u958b\u555f\u6587\u4ef6
\nwith open(“test.txt”, “r”) as f:
\n # \u5c07\u6307\u91dd\u79fb\u52d5\u5230\u6587\u4ef6\u7684\u958b\u982d
\n f.seek(0)<\/p>\n

# \u7372\u53d6\u7576\u524d\u6307\u91dd\u4f4d\u7f6e
\n position = f.tell()
\n print(f”\u7576\u524d\u6587\u4ef6\u6307\u91dd\u4f4d\u7f6e: {position}”) # \u8f38\u51fa: 0
\n“`<\/p>\n

\u5728\u4e0a\u8ff0\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 `with` \u8a9e\u53e5\u4f86\u78ba\u4fdd\u6587\u4ef6\u5728\u4f7f\u7528\u5f8c\u6b63\u78ba\u95dc\u9589\uff0c\u9019\u662f Python \u4e2d\u7684\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

\u6aa2\u67e5\u6587\u4ef6\u662f\u5426\u5df2\u88ab\u8b80\u53d6\u5b8c\u7562<\/h2>\n

\u9664\u4e86\u67e5\u770b\u6587\u4ef6\u6307\u91dd\u7684\u4f4d\u7f6e\uff0c`tell()` \u51fd\u6578\u4e5f\u53ef\u4ee5\u7528\u4f86\u6aa2\u67e5\u6587\u4ef6\u662f\u5426\u5df2\u7d93\u88ab\u8b80\u53d6\u5b8c\u7562\u3002\u7576\u6587\u4ef6\u7684\u8b80\/\u5beb\u6307\u91dd\u79fb\u52d5\u5230\u6587\u4ef6\u7684\u672b\u5c3e\u6642\uff0c`tell()` \u51fd\u6578\u6703\u8fd4\u56de\u6587\u4ef6\u7684\u5927\u5c0f\u3002\u4ee5\u4e0b\u662f\u6aa2\u67e5\u6587\u4ef6\u662f\u5426\u8b80\u53d6\u5b8c\u7562\u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nimport os<\/p>\n

with open(“test.txt”, “r”) as f:
\n # \u8b80\u53d6\u6587\u4ef6\u5167\u5bb9
\n content = f.read()<\/p>\n

# \u6aa2\u67e5\u6307\u91dd\u4f4d\u7f6e\u662f\u5426\u7b49\u65bc\u6587\u4ef6\u5927\u5c0f
\n if f.tell() == os.stat(f.name).st_size:
\n print(“\u6587\u4ef6\u5df2\u8b80\u53d6\u5b8c\u7562”)
\n“`<\/p>\n

\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u7528 `os.stat()` \u7372\u53d6\u6587\u4ef6\u7684\u5927\u5c0f\uff0c\u4e26\u8207 `tell()` \u8fd4\u56de\u7684\u6307\u91dd\u4f4d\u7f6e\u9032\u884c\u6bd4\u8f03\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664<\/h2>\n

\u5728\u4f7f\u7528 `tell()` \u51fd\u6578\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u4f8b\u5982\uff1a<\/p>\n

– **\u6587\u4ef6\u672a\u958b\u555f**\uff1a\u78ba\u4fdd\u6587\u4ef6\u5df2\u7d93\u6b63\u78ba\u958b\u555f\uff0c\u5426\u5247\u8abf\u7528 `tell()` \u6703\u5c0e\u81f4\u932f\u8aa4\u3002
\n– **\u6587\u4ef6\u6a21\u5f0f\u4e0d\u6b63\u78ba**\uff1a\u4f7f\u7528 `tell()` \u65bc\u5beb\u5165\u6a21\u5f0f\u4e0b\u7684\u6587\u4ef6\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u60f3\u4e0d\u5230\u7684\u7d50\u679c\uff0c\u5efa\u8b70\u5728\u8b80\u53d6\u6a21\u5f0f\u4e0b\u4f7f\u7528\u3002<\/p>\n

\u5ef6\u4f38\u61c9\u7528<\/h2>\n

`tell()` \u51fd\u6578\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u53ef\u4ee5\u7528\u65bc\u591a\u7a2e\u60c5\u5883\uff0c\u4f8b\u5982\uff1a<\/p>\n

– \u5728\u8655\u7406\u5927\u578b\u6587\u4ef6\u6642\uff0c\u53ef\u4ee5\u7528\u4f86\u5be6\u73fe\u5206\u6bb5\u8b80\u53d6\uff0c\u907f\u514d\u4e00\u6b21\u6027\u8f09\u5165\u6240\u6709\u6578\u64da\u3002
\n– \u5728\u5be6\u73fe\u6587\u4ef6\u6062\u5fa9\u529f\u80fd\u6642\uff0c\u8a18\u9304\u4e0a\u6b21\u8b80\u53d6\u7684\u4f4d\u7f6e\uff0c\u4ee5\u4fbf\u65bc\u4e0b\u6b21\u91cd\u555f\u6642\u5f9e\u8a72\u4f4d\u7f6e\u7e7c\u7e8c\u3002<\/p>\n

\u82e5\u60f3\u6df1\u5165\u4e86\u89e3 Python \u6587\u4ef6\u8655\u7406\u7684\u66f4\u591a\u6280\u5de7\uff0c\u8acb\u53c3\u8003\u6211\u5011\u7684[Python \u6587\u4ef6\u8655\u7406\u6559\u5b78](https:\/\/vocus.cc)\uff0c\u9019\u5c07\u5e6b\u52a9\u4f60\u66f4\u5168\u9762\u5730\u638c\u63e1\u6587\u4ef6\u64cd\u4f5c\u7684\u5404\u7a2e\u65b9\u6cd5\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

Python \u4e2d\u7684 `tell()` \u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u4f86\u8fd4\u56de\u6587\u4ef6\u8b80\/\u5beb\u6307\u91dd\u7684\u7576\u524d\u4f4d\u7f6e\uff0c\u4e26\u6aa2\u67e5\u6587\u4ef6\u662f\u5426\u5df2\u7d93\u88ab\u8b80\u53d6\u5b8c\u7562\u3002\u4f7f\u7528 `tell()` \u51fd\u6578\u4e4b\u524d\uff0c\u9700\u8981\u5148\u958b\u555f\u4e00\u500b\u6587\u4ef6\uff0c\u4e26\u5c07\u6307\u91dd\u79fb\u52d5\u5230\u6307\u5b9a\u4f4d\u7f6e\u3002\u638c\u63e1\u9019\u500b\u51fd\u6578\u5c07\u4f7f\u4f60\u5728\u6587\u4ef6\u8655\u7406\u4e0a\u66f4\u5177\u6548\u7387\u8207\u9748\u6d3b\u6027\u3002<\/p>\n

Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n

**Q1: `tell()` \u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u4e8c\u9032\u5236\u6587\u4ef6\u55ce\uff1f**
\nA1: \u662f\u7684\uff0c`tell()` \u51fd\u6578\u540c\u6a23\u9069\u7528\u65bc\u4e8c\u9032\u5236\u6587\u4ef6\uff0c\u80fd\u5920\u8fd4\u56de\u7576\u524d\u6307\u91dd\u7684\u4f4d\u7f6e\u3002<\/p>\n

**Q2: \u5982\u4f55\u5728\u5beb\u5165\u6a21\u5f0f\u4e0b\u4f7f\u7528 `tell()` \u51fd\u6578\uff1f**
\nA2: \u5728\u5beb\u5165\u6a21\u5f0f\u4e0b\u4f7f\u7528 `tell()` \u51fd\u6578\u6642\uff0c\u8acb\u78ba\u4fdd\u5728\u5beb\u5165\u5f8c\u8abf\u7528\uff0c\u4ee5\u7372\u53d6\u7576\u524d\u7684\u5beb\u5165\u4f4d\u7f6e\u3002<\/p>\n

**Q3: \u5982\u679c\u6587\u4ef6\u5df2\u7d93\u95dc\u9589\uff0c\u5982\u4f55\u7372\u53d6\u6307\u91dd\u4f4d\u7f6e\uff1f**
\nA3: \u4e00\u65e6\u6587\u4ef6\u95dc\u9589\uff0c\u7121\u6cd5\u518d\u4f7f\u7528 `tell()` \u51fd\u6578\u7372\u53d6\u6307\u91dd\u4f4d\u7f6e\uff1b\u5fc5\u9808\u91cd\u65b0\u958b\u555f\u6587\u4ef6\u3002<\/p>\n

—<\/p>\n","protected":false},"excerpt":{"rendered":"

tell()\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u7528\u65bc\u638c\u63e1\u6587\u4ef6\u8b80\/\u5beb\u6307\u91dd\u7684\u7576\u524d\u4f4d\u7f6e\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u63a7\u5236\u6587\u4ef6\u7684\u8b80\/\u5beb\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u4ecb\u7d39tell()\u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5b83\u5728\u6587\u4ef6\u8b80\/\u5beb\u64cd\u4f5c\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-2864","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-Kc","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=2864"}],"version-history":[{"count":3,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2864\/revisions"}],"predecessor-version":[{"id":13019,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2864\/revisions\/13019"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=2864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=2864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=2864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}