{"id":183840,"date":"2023-07-29T04:21:05","date_gmt":"2023-07-28T20:21:05","guid":{"rendered":"http:\/\/www.idc.net\/help\/183840\/"},"modified":"2023-07-29T04:21:05","modified_gmt":"2023-07-28T20:21:05","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91python%e6%95%99%e7%a8%8b%ef%bc%9apython%e5%a6%82%e4%bd%95%e8%af%bb%e5%8f%96%e5%a4%a7%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/183840\/","title":{"rendered":"\u540e\u6d6a\u4e91Python\u6559\u7a0b\uff1apython\u5982\u4f55\u8bfb\u53d6\u5927\u6587\u4ef6"},"content":{"rendered":"

<\/p>\n

\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u65b9\u6cd5\u5229\u7528python\u8bfb\u53d6\u5927\u6587\u4ef6\uff1a\u7b2c\u4e00\u79cd\u662f\u5229\u7528yield\u751f\u6210\u5668\u8bfb\u53d6\uff1b\u7b2c\u4e8c\u79cd\u662f\uff1a\u5229\u7528open()\u81ea\u5e26\u65b9\u6cd5\u751f\u6210\u8fed\u4ee3\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u662f\u4e00\u884c\u4e00\u884c\u7684\u8bfb\u53d6\u3002<\/span><\/span><\/p>\n

1\u3001\u5229\u7528yield\u751f\u6210\u5668\u8bfb\u53d6<\/span><\/p>\n

def readPart(filePath, size=1024, encoding=\"utf-8\"):\n    with open(filePath,\"r\",encoding=encoding) as f:\n        while True:\n            part = f.read(size)  \n            if part:\n                yield part\n            else:\n                return None\nfilePath = r\"filePath\"\nsize = 2048 # \u6bcf\u6b21\u8bfb\u53d6\u6307\u5b9a\u5927\u5c0f\u7684\u5185\u5bb9\u5230\u5185\u5b58\nencoding = 'utf-8'\nfor part in readPart(filePath,size,encoding):\n    print(part)\n    # Processing data<\/pre>\n
2\u3001\u5229\u7528open()\u81ea\u5e26\u65b9\u6cd5\u751f\u6210\u8fed\u4ee3\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u662f\u4e00\u884c\u4e00\u884c\u7684\u8bfb\u53d6<\/span><\/p>\n
with open(filePath) as f:\n    for line in f:\n        print(line)\n        # Processing data<\/pre>\n
python\u8bfb\u53d6\u6587\u4ef6\u76f8\u5173\u64cd\u4f5c\u6587\u6863\u6b22\u8fce\u67e5\u770b\uff1a<\/p>\n
python\u5982\u4f55\u8bfb\u53d6\u6587\u4ef6\u7684\u6570\u636e<\/p>\n
\n
\n
\uff08\u63a8\u8350\u64cd\u4f5c\u7cfb\u7edf\uff1awindows7\u7cfb\u7edf\u3001Python 3.9.1\uff0cDELL G3\u7535\u8111\u3002\uff09<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u65b9\u6cd5\u5229\u7528python\u8bfb\u53d6\u5927\u6587\u4ef6\uff1a\u7b2c\u4e00\u79cd\u662f\u5229\u7528yield\u751f\u6210\u5668\u8bfb\u53d6\uff1b\u7b2c\u4e8c\u79cd\u662f\uff1a\u5229\u7528open()\u81ea\u5e26\u65b9 […]<\/p>\n","protected":false},"author":1,"featured_media":183841,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[182397],"tags":[],"class_list":["post-183840","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/183840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=183840"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/183840\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media\/183841"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=183840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=183840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=183840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}