save project

12.3.py

 username='aaaaaaaaa'
 username='aaaaaaaaa'
 userpassword="1223456"
 userpassword="1223456"
-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")
 while True:
 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("用户名错误，请重新输入!")  
+        continue
+    if 
     
     
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