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发表于 2020-5-16 21:41:07
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试试这样:
- var1 = StringVar()
- var1.set("检查 状态:")
- label20 = tk.Label(mw,textvariable=var1,font = ("宋体",10)).place(x = 660,y =10)
- def checked_status():
- global server_name
- global user_name
- global user_password
- global database_name
- global datatable_name
- global label20
- conn = pymysql.connect(server_name, user_name, user_password, database_name, charset="utf8")
- cursor = conn.cursor()
- sql = "select checked_time from " + datatable_name
- cursor.execute(sql)
- result = cursor.fetchall()
- for i in result:
- if i[0] == None:
- var1.set("检查状态:未检查")
- if len(i[0]) == 0:
- var1.set("检查状态:未检查")
- else:
- var1.set("检查状态:已检查")
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