save project

3.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("成功登陆")
-        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")
-    
+    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("成功登陆")
+            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")
+    esle:
+        print("您的登陆次数已用完")
+    iext()
+print("欢迎来到贝尔编程！") 
\ No newline at end of file