save project

diy2.py

@@ -2,12 +2,14 @@ username='ro'
 userpassword='367'
 name=input('请输入你的帐号:')
 password=input('请输入您的密码：')
-if username==name and userpassword==password:
-        print('您已成功登陆')
-if username!=name:
-    print('用户名错误')
-    continue
-if password!=userpassword:
-    print('密码错误')
+while True:
+    if username==name and userpassword==password:
+            print('您已成功登陆')
+            break
+    if username!=name:
+        print('用户名错误')
+        continue
+    if password!=userpassword:
+        print('密码错误')
 
         
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