白名单：这种替代方法列出所有允许的字符并从输入中移除所有其它的字符。

Whitelisting: This alternative lists all the allowed characters and removes all other characters from the input.

youdao

白名单：这种替代方法列出所有允许的字符并从输入中移除所有其它的字符。

Whitelisting: This alternative lists all the allowed characters and removes all other characters from the input.

youdao