save project

bug.py

 import tkinter as tk
-var = tk.StringVar()
 def btn():
     global var
     global en_user
@@ -8,18 +7,24 @@ def btn():
     password = en_pass.get()
     if usersname == "ak47" and password == 'dnfh':
         var.set("登录成功！")
+    elif usersname != 'ak47':
+        var.set("用户名错误")
+    elif password != 'dnfh':
+        var.set("密码错误！")
     else:
-        var.set("dnfh傻逼滚！")
+        var.set("用户名和密码错误！")
 root = tk.Tk()
 root.geometry("200x150")
 root.title("登录")
+var = tk.StringVar()
 en_user = tk.Entry(root)
 en_pass = tk.Entry(root)
-la = tk.Label(root,width = 200, height = 30 ,bgcolor = 'blue',textvariable = var)
+la = tk.Label(root,width = 200,textvariable = var)
 # usersname = input("请输入用户名:")
 # password = input("请输入密码:")
 bt = tk.Button(root, width = 10,height = 2,text = '确认',command = btn)
 la.pack()
 en_user.pack()
 en_pass.pack()
+bt.pack()
 root.mainloop()
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