{"id":2221,"date":"2017-05-17T11:46:36","date_gmt":"2017-05-17T03:46:36","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=2221"},"modified":"2017-05-17T11:46:36","modified_gmt":"2017-05-17T03:46:36","slug":"python%e8%bf%9b%e9%98%b602-%e6%96%87%e6%9c%ac%e6%96%87%e4%bb%b6%e7%9a%84%e8%be%93%e5%85%a5%e8%be%93%e5%87%ba","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/python\/python%e8%bf%9b%e9%98%b602-%e6%96%87%e6%9c%ac%e6%96%87%e4%bb%b6%e7%9a%84%e8%be%93%e5%85%a5%e8%be%93%e5%87%ba\/","title":{"rendered":"Python\u8fdb\u963602 \u6587\u672c\u6587\u4ef6\u7684\u8f93\u5165\u8f93\u51fa"},"content":{"rendered":"

Python\u5177\u6709\u57fa\u672c\u7684\u6587\u672c\u6587\u4ef6\u8bfb\u5199\u529f\u80fd\u3002Python\u7684\u6807\u51c6\u5e93\u63d0\u4f9b\u6709\u66f4\u4e30\u5bcc\u7684\u8bfb\u5199\u529f\u80fd\u3002<\/p>\n

\u6587\u672c\u6587\u4ef6\u7684\u8bfb\u5199\u4e3b\u8981\u901a\u8fc7open()\u6240\u6784\u5efa\u7684\u6587\u4ef6\u5bf9\u8c61\u6765\u5b9e\u73b0\u3002<\/p>\n

 <\/p>\n

\u521b\u5efa\u6587\u4ef6\u5bf9\u8c61<\/h3>\n

\u6211\u4eec\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528\u4e00\u4e2a\u5bf9\u8c61\u6765\u8868\u793a\u8be5\u6587\u4ef6\uff1a<\/p>\n

f = open(\u6587\u4ef6\u540d\uff0c\u6a21\u5f0f)<\/p>\n

 <\/p>\n

\u6700\u5e38\u7528\u7684\u6a21\u5f0f\u6709\uff1a<\/p>\n

“r”\u00a0\u00a0\u00a0\u00a0 # \u53ea\u8bfb<\/p>\n

\u201cw\u201d\u00a0\u00a0 \u00a0 # \u5199\u5165<\/p>\n

 <\/p>\n

\u6bd4\u5982<\/p>\n

>>>f = open(“test.txt”,”r”)<\/p>\n

 <\/p>\n

\u6587\u4ef6\u5bf9\u8c61\u7684\u65b9\u6cd5<\/h3>\n

\u8bfb\u53d6\uff1a<\/p>\n

content = f.read(N)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # \u8bfb\u53d6N bytes\u7684\u6570\u636e<\/p>\n

content = f.readline()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 # \u8bfb\u53d6\u4e00\u884c<\/p>\n

content = f.readlines()\u00a0\u00a0\u00a0\u00a0\u00a0 # \u8bfb\u53d6\u6240\u6709\u884c\uff0c\u50a8\u5b58\u5728\u5217\u8868\u4e2d\uff0c\u6bcf\u4e2a\u5143\u7d20\u662f\u4e00\u884c\u3002
\n\u5199\u5165\uff1a<\/p>\n

f.write(‘I like apple’)\u00a0\u00a0\u00a0\u00a0\u00a0 # \u5c06’I like apple’\u5199\u5165\u6587\u4ef6<\/p>\n

 <\/p>\n

\u5173\u95ed\u6587\u4ef6\uff1a<\/p>\n

f.close()<\/p>\n

 <\/p>\n

\u7ec3\u4e60<\/strong><\/p>\n

\u5efa\u7acb\u4e00\u4e2arecord.txt\u7684\u6587\u6863\uff0c\u5199\u5165\u5185\u5bb9\u5982\u4e0b:<\/p>\n

\n
tom, 12, 86\r\nLee, 15, 99\r\nLucy, 11, 58\r\nJoseph, 19, 56<\/pre>\n<\/div>\n
\u518d\u4ecerecord.txt\u4e2d\u8bfb\u53d6\u6587\u4ef6\u5e76\u6253\u5370\u3002<\/p>\n
 <\/p>\n
 <\/p>\n
\u603b\u7ed3<\/h3>\n
f\u00a0\u00a0\u00a0 = open(name, “r”)<\/p>\n
line = f.readline()<\/p>\n
f.write(‘abc’)<\/p>\n
f.close()<\/p>\n
 <\/p>\n
 <\/p>\n
 <\/p>\n
\u6587\u7ae0\u6765\u81ea\u7f51\u7edc\u535a\u5ba2,\u4f5c\u8005\uff1aVamei \u51fa\u5904\uff1ahttps:\/\/www.cnblogs.com\/vamei<\/p>\n","protected":false},"excerpt":{"rendered":"
Python\u5177\u6709\u57fa\u672c\u7684\u6587\u672c\u6587\u4ef6\u8bfb\u5199\u529f\u80fd\u3002Python\u7684\u6807\u51c6\u5e93\u63d0\u4f9b\u6709\u66f4\u4e30\u5bcc\u7684\u8bfb\u5199\u529f\u80fd\u3002 \u6587\u672c\u6587\u4ef6\u7684\u8bfb\u5199\u4e3b\u8981\u901a\u8fc7o … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[654],"tags":[663],"class_list":["post-2221","post","type-post","status-publish","format-standard","hentry","category-python","tag-python-"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=2221"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2221\/revisions"}],"predecessor-version":[{"id":2222,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/2221\/revisions\/2222"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=2221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=2221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=2221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}