save project

bangxuan.py

 zh="bangxuan"
 mm="123456"
-zh1=input("请输入账号")
-mm1=input("请输入密码")
-if zh==zh1 and mm==mm1:
-    print("登录成功！")
-else:
-    print("账号密码输入错误！")
\ No newline at end of file
+while True:
+    zh1=input("请输入账号")
+    mm1=input("请输入密码")
+    if zh==zh1 and mm==mm1:
+        print("登录成功！")
+        break
+    print("账号密码输入错误！")
+print("欢迎来到贝尔编程！")    
\ No newline at end of file