ChaosArray shuffle array.

Contain contain.

ContainStrings contains string list.

Copy copy string list.

EqualStrings string lists have same elements.

Interact string list.

IsBlank is string blank.

是否纯数字.

LowercaseWithSpace 将大写单词转化成小写并以空格分割.

Remove remove string.

Substract string list.

UnderlineLowercase 将大写单词转化成小写加下划线.

Union string list.

Uniq string list.