我有一组div:payment1payment2payment3我的JS:functionappendCheckMark(type){$(type).append('');}functionselectPayment(type){varval=$(type).attr('value');if(val=='paylater'){appendCheckMark(type);}elseif(val=='alipay'){appendCheckMark(type);}elseif(val=='wechatpay'){appendCheckMark(type);}}我的问题是，如何使这三个div