js:时间格式化

new Date().toTimeString().replace(/.*(\d{2}:\d{2}:\d{2}).*/, "$1")

function formatDay(param) { 
　　var year = param.getFullYear();
　　var month = param.getMonth() + 1;
　　var day = param.getDay();
　　month = month.toString() > 1 ? month :‘0‘+ month;
　　day = day.toString() > 1 ? ‘0‘ + day : day;
　　return day + "/" + month + "/" + year;
}