save project

diy2.py

 username = "zsw"
 username = "zsw"
 userpassword = "123456"
 userpassword = "123456"
+i=3
 while True:
 while True:
+    if i>0:
         a = input("请输入用户名:")
         a = input("请输入用户名:")
         b = input("请输入密码:")
         b = input("请输入密码:")
+        i=i-1
         if a == username and b == userpassword:
         if a == username and b == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
         if username!=a:  
         if username!=a:  
             print("用户名错误!请重新输入")
             print("用户名错误!请重新输入")
+            print("你还剩"+str(i)+"次机会")
             continue
             continue
         if userpassword!=b:
         if userpassword!=b:
             print("密码错误!请重新输入")
             print("密码错误!请重新输入")
+            print("你还剩"+str(i)+"次机会")
+    else:
+        print("账号锁定")
+        exit()
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file