And if you're returning nothing, you don't just leave it blank.

如果不返回任何值，你就让它成为空白的。

youdao

Please leave it blank if there is no need to alter the password.

不需要更改密码请留空。即不更改密码，则不要在方框中填写任何字符。

youdao

Please leave it blank if there is no need to change the password.

不需要更改密码请留空。即不更改密码，则不要在方框中填写任何字符。

youdao

And if you're returning nothing, you don't just leave it blank.

如果不返回任何值，你就让它成为空白的。

哈佛公开课 - 计算机科学课程节选