save project

diy2.py

+i=3
 username = "python"
 userpassword = "123456"
 while True:
-    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
-    if name != username:
-        print("账户错误!")
-        continue
-    if password  !=  userpassword:
-        print("密码错误!")
-print("欢迎来到贝尔编程！")    
\ No newline at end of file
+    if i>0:  
+        name=input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        elif  name != username:
+            print("账户错误!")         
+        if password  !=  userpassword:
+            print("密码错误!")
+            i=0
+        else:
+            print("次数已用完")
+            exit()
+            
+print("欢迎来到贝尔编程!")
\ No newline at end of file