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参数格式: date :2016-03-02 days:-3(2)当为负数的时候日期往前推,为正数,日期往后推 function addDate(date, days) { var d = new Date(date); d.setDate(d.getDate() + days); var m = d.getMonth() + 1; var da = d.getDate(); if (m<10) { m = '0' + m; } if (da<10) { da = '0' + da; } re