save project

diy2.py

+username = "python"
+userpassword = "123456"
+i=3
+while True :
+    if i>0:
+        name = input("请输入用户名: ")
+        password = input("请输入密码: ")
+        i-=i
+        ii=str(i)
+        if name == username and userpassword == password:
+        print("登录成功!")
+        print("欢迎来到贝尔编程!")
+        break
+        elif name!=username:
+            print("用户名不存在，请重新输入：")
+        else:
+            print("密码错误，请重新输入：")
+        print("你输入的剩余次数"+ii+"次")
+    else:
+        print("账号已锁定")
+        exit()