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  • sql处理

    def mysqls_more(sql):
        # 连接数据库
        hostvalue = 'localhost'
        uservalue = 'root'
        passwordvalue = 'root'
        dbvalue = 'book'
        portvalue = 3306
        connection = pymysql.connect(host=hostvalue, user=uservalue, password=passwordvalue, db=dbvalue,
                                     port=portvalue,charset='utf8mb4', cursorclass=pymysql.cursors.DictCursor)
        # 通过cursor创建游标
        cursor = connection.cursor()
        # 创建sql 语句,并执行
        sqlvalue = sql  # "select * from user"
        rows = cursor.execute(sqlvalue)
        print(rows)
        if rows <= 1:
            result = cursor.fetchone()  # 查询数据库单条数据
            print(result)
        else:
            results = cursor.fetchall() #查询数据库多条数据
            print(results)
        # 提交sql
        connection.commit()
        return
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  • 原文地址:https://www.cnblogs.com/xiaochuichui/p/13280918.html
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