save project

rffgg.py

+i=3
+username="python"
+userpassword="123456"
+while True:
+    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("登录成功")
+            break
+        if name!=username:
+            print()
\ No newline at end of file