英语语法分析

You can play both Xs and Os.

玩游戏时既可以使用X，也可以使用o。

Compare and contrast with XS and swig.

与XS和SWIG相比较。

And xs: Boolean (" 0 ") returns false, just as xs: Boolean (0) does.

boolean(“ 0 ”)返回false，和xs： boolean(0)一样。