读取数据库pymysql

# 读取数据库

    # 链接数据库    # 创建一个查询页    # 输入sql语句    # 查询    # 查看结果    # 关闭查询页    # 关闭数据库

import pymysqlclass ReadMysql:    def __init__(self):        self.mysql = pymysql.connect(host='', user='', password='', charset='utf8', port=3306)        self.cursor = self.mysql.cursor()    def fetch_one(self, sql):        self.cursor.execute(sql)        result = self.cursor.fetchone()[0]        print(result)    def fetch_all(self, sql):        self.cursor.execute(sql)        result = self.cursor.fetchall()[0][0]        print(result)                    def close(self):        self.cursor.close()        self.mysql.close()        if __name__ == '__main__':

来源：https://www.cnblogs.com/sophia-985935365/p/12634467.html