save project

bug.py

 username="pythan"
 username="pythan"
 userpassword="123456"
 userpassword="123456"
 while True:
 while True:
-  name = input("输入账号")
-   password = input("输入密码")
-   if name==username and password==userpassword: 
-     print("登陆成功")
-     break
-  print("账号或密码错误，请重试")
+    name = input("输入账号:")
+    password = input("输入密码:")
+    if name == username and password == userpassword: 
+        print("登陆成功")
+        break
+    print("账号或密码错误，请重试")
+    if name != username:
+        print("账号错误")
+    if password != userpassword:
+        print("密码错误")
 print("欢迎来到天水二院")
 print("欢迎来到天水二院")