save project

diy2.py

+= "python"
+userpassword = "123456"
+i=3
+while True:
+    if i>0:
+        i-=1
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        elif name!="username":    
+            print("用户名错误!请重新输入")
+        else:  
+            print("密码错误!请重新输入")
+    else:   
+        print(你的账号被封了)
+        exit()
+print("欢迎来到贝尔编程!")