Do use enumerations if a member would otherwise have two or more Boolean parameters.

如果成员本来有两个或多个布尔参数，则要使用枚举。

youdao

For instance, it would be nice to let the Boolean parameters be defined as false if the flag character is present, rather than always true if present.

例如，如果给出了标记字符的话，将boolean形参定义为false会比较好，而不是总将它定义为true。

youdao

The Boolean parameters only need the flag character itself to set a value, but the other types of parameters require some sort of additional argument information.

boolean形参只需标记字符本身就可以设置一个值，而其他类型的形参还需要某种附加的实参信息。

youdao