import pymysql #連接數據庫 conn=pymysql.connect(host='127.0.0.1',port=3306,user='root',passwd='123',db='leak') #字典形式取出的游標 cusor=conn.cursor(cursor=pymysql.cursors.DictCursor)#字典形式輸出即id:1 ,name:tom cusor.execute("select * from test") print(cusor.fetchone()) #cusor=conn.cursor()#游標,元祖形式呈現 #sql="create table test(id int,name varchar(20))"#建表 ##cusor.execute("")#sql語句執行放引號里或用sql代替 #cusor.execute(sql)#執行建表操作,一次就好之后注釋掉 #添加數據需要commit提交操作 #cusor.execute("insert into test values(1,'tom'),(2,'jerry')") #ret=cusor.execute("select * from test") #print(ret)#顯示的只是表中數據的記錄,不好 #cusor.execute("select * from test") #print(cusor.fetchone())#顯示表中數據,只一個 #print(cusor.fetchmany(2))#顯示多個可設值 #print(cusor.fetchall())#全取 conn.commit()#提交操作,建表不需要此句,但是增刪改查具體操作需要此句 cusor.close() conn.close()