// 判断输入是否是有效的长日期格式 - "YYYY-MM-DD HH:MM:SS" || "YYYY/MM/DD HH:MM:SS" function isdatetime(str) { var result=str.match(/^(\d{4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/); if(result==null) return false; var d= new Date(result[1], result[3]-1, result[4], result[5], result[6], result[7]); return (d.getFul
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