#JavaScript#方法一:<script type=text/javascript>var str = 'caibaojian.com',obj=[];for(var i = 0; i< str.length; i++){var key = str[i];if(!obj[key]...请戳→ #前端开发博客#
#JavaScript#方法一:<script type=text/javascript>var str = 'caibaojian.com',obj=[];for(var i = 0; i< str.length; i++){var key = str[i];if(!obj[key]...请戳→ #前端开发博客#