save project

Untitled-1.py.py

+n="y"
+m="4444"
+nn=input("用户名")
+mm=input("密码")
+while True:
+    if nn==n and m==mm:
+       print("登录成功")
+       break
+    if n!=nn:
+       print("用户名错误")
+       continue
+    if mm!=m:
+       print("密码错误") 
+       
\ No newline at end of file