save project

6.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("登陆成功")
+            break
+        if name!=username:
+            print("用户名错误，请重新输入")
+            print("")
+            continue
+         if password != wserpassword:
+             print("密码输入有五，请重新输入！)
+             print("")
+