{"id":1177,"date":"2022-07-08T11:05:05","date_gmt":"2022-07-08T03:05:05","guid":{"rendered":"http:\/\/175.24.184.226\/?p=1177"},"modified":"2022-07-08T11:05:05","modified_gmt":"2022-07-08T03:05:05","slug":"pymysql%e8%bf%9e%e6%8e%a5%e6%95%b0%e6%8d%ae%e5%ba%93%ef%bc%8c%e8%8e%b7%e5%8f%96%e6%95%b0%e6%8d%ae%e5%86%99%e5%85%a5%e5%88%b0txt%ef%bc%8c%e5%b9%b6%e4%bb%8etxt%e8%af%bb%e5%8f%96%e4%bb%a3%e7%a0%81","status":"publish","type":"post","link":"\/?p=1177","title":{"rendered":"pymysql\u8fde\u63a5\u6570\u636e\u5e93\uff0c\u83b7\u53d6\u6570\u636e\u5199\u5165\u5230txt\uff0c\u5e76\u4ecetxt\u8bfb\u53d6\u4ee3\u7801\u793a\u4f8b\uff08\u6d89\u53ca\u5230\u4e2d\u6587\uff09"},"content":{"rendered":"
def get_conn():\n    try:\n        conn = pymysql.connect(\n            host = "***",\n            port = ***,\n            user = "***",\n            password = "***",\n            db = "***")\n    except Exception as e:\n            logger.warning(e)\n    finally:\n        return conn\n\ndef get_data_from_db(filename):\n    conn = get_conn()\n    sql_v = """\n        select A,B,C\n        from tablename\n    """\n    conn = get_conn()\n    cur = conn.cursor()\n\n    cur.execute(sql_v)\n    result = cur.fetchall()\n    #print(result[0])\n\n    fp = open(filename, "wb+")\n    count = 0\n    for line in result:\n        line = '\\t'.join([ str(val) for val in line]) + "\\n" #\u683c\u5f0f\uff1aA\\tB\\tC\\n\n        #print (line)\n        fp.write(line.encode('utf8') ) #\u4ee5utf8\u5199\u5165\n        count += 1\n    fp.close()\n    cur.close()\n    conn.close()\n    print("\u5199\u5165\u5b8c\u6210,\u5171\u5199\u5165%d\u6761\u6570\u636e\u2026\u2026" % count)\n\ndef process(filename):\n    file = open(filename, "r", encoding='utf8')\n    while 1:\n        line = file.readline()\n        print(line)\n        if not line:\n            break\n        pass #process\n\nif __name__ =='__main__':\n    filename = '.\/understand\/0.txt' \n    get_data_from_db(filename)\n    process(filename)\n<\/code><\/pre>\n
\u5f53\u65f6\u7f16\u7801\u95ee\u9898\u641e\u4e86\u4f1a\u513f\u3002\u4ee5\u540e\u5c31\u6309\u8fd9\u79cd\u5199\u5427\u3002
\n\u6ce8\u610f\uff1a
\n\u542b\u6709\u4e2d\u6587\uff0c\u5f80\u6587\u4ef6\u5199\u7684\u65f6\u5019:
\nfp = open(filename, \u201cwb+\u201d)
\nfp.write(line.encode(\u2018utf8\u2019) )\u7f16\u7801\u4e86\u4e00\u4e0b\u3002
\n\u8bfb\u7684\u65f6\u5019\uff1a<\/p>\n
with open(filename, "r", encoding='utf8') as f:\n    ...\n<\/code><\/pre>\n
python3\u7684\u7cfb\u7edf\u7f16\u7801\u4e3autf-8<\/strong><\/p>\n
\u6709\u65f6\u95f4\u770b\u4e0b\u8fd9\u4e2a\u5427 https:\/\/blog.csdn.net\/weixin\\_29343807\/article\/details\/112240197<\/a><\/p>\n
<\/a>\u65b0\u589e\u6ce8\u610f<\/h1>\n
\u5bf9\u4e8e\u5927\u6587\u4ef6\u7684\u5904\u7406\uff0c\u5c24\u5176\u6bd4\u5982GB\u7ea7\u522b\u7684\u65e5\u5fd7\uff0c\u904d\u5386\u64cd\u4f5c\u4e0d\u8981\u7528readlines(),readlines()\u4e00\u6b21\u6027\u8bfb\u5165\u6587\u4ef6\u4e2d\u6240\u6709\u884c\uff0c\u5b58\u50a8\u5230\u4e00\u4e2alist\u8fd4\u56de\uff0c\u5f88\u8017\u5185\u5b58\uff0c\u5efa\u8bae\u7528\u8fed\u4ee3\u5668\u3002<\/p>\n
1\u3001\u4e0d\u5efa\u8bae\u4f7f\u7528\u4e0b\u9762\u7684\u904d\u5386\u65b9\u5f0f\uff1a<\/p>\n
\u4e0d\u5efa\u8bae\u7528\uff01\nfor line in open(filename).readlines():\n    process(line)\n<\/code><\/pre>\n
2\u3001\u5efa\u8bae\u8fd9\u6837\u7528\uff1a
\n\u4f7f\u7528\u6587\u4ef6\u8fed\u4ee3\u5668<\/strong>\u904d\u5386\u6587\u4ef6\uff1a<\/p>\n
with open(filename) as f:\n    for line in f:\n        process(f)\n<\/code><\/pre>\n
\u6216\u8005\u6d41\u5f0f\u8f93\u5165\uff1a<\/p>\n
\u672c\u6587\u8f6c\u81ea https:\/\/blog.csdn.net\/u013317445\/article\/details\/111045718<\/a>\uff0c\u5982\u6709\u4fb5\u6743\uff0c\u8bf7\u8054\u7cfb\u5220\u9664\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
def get_conn(): try: conn = pymysql.connect( host = "***",   \u2026 …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[48],"tags":[16],"_links":{"self":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts\/1177"}],"collection":[{"href":"\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1177"}],"version-history":[{"count":1,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/1177\/revisions"}],"predecessor-version":[{"id":1178,"href":"\/index.php?rest_route=\/wp\/v2\/posts\/1177\/revisions\/1178"}],"wp:attachment":[{"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1177"},{"taxonomy":"post_tag","embeddable":true,"href":"\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}