原生态js写的日期选择器 function HS_DateAdd(interval,number,date){ number = parseInt(number); if (typeof(date)=="string"){var date = new Date(date.split("-")[0],date.split("-")[1],date.split("-")[2])} if (typeof(date)=="object"){var date = date} switch(interval){ case "y":return new Date(date.getFullYear()+number,date.getMonth(),date.getDate()); break; case "m":return new Date(date.getFullYear(),date.getMonth()+number,checkDate(date.getFullYear(),date.getMonth()+nu mber,date.getDate())); break; case "d":return new Date(date.getFullYear(),date.getMonth(),date.getDate()+number); break; case "w":return new Date(date.getFullYear(),date.getMonth(),7*number+date.getDate()); break; } }