You can even use "*" as a precision specifier (such as "%.*s"), so you can pass in a maximum length instead of having the maximum length embedded in the control string.

甚至可以使用“ * ”作为精确指定符（比如“ %.*s ”），这样您就可以传入一个最大长度值，而不是在控制字符串中嵌入最大长度值。

youdao

You can even use "*" as a precision specifier (such as "%.*s"), so you can pass in a maximum length instead of having the maximum length embedded in the control string.

甚至可以使用“ * ”作为精确指定符（比如“ %.*s ”），这样您就可以传入一个最大长度值，而不是在控制字符串中嵌入最大长度值。

youdao