判断字符串是否是时间
??????? //================================================
??????? // 说明：判断字符串是否是时间(js)
??????? //------------------------------------------------
??????? function IsTime(dateString) {
??????????? dateString = $.trim(dateString);
??????????? if (dateString == null && dateString.length == 0) {
??????????????? return false;
??????????? }
??????????? dateString = dateString.replace(/\//g, "-");
??????????? var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
??????????? var r = dateString.match(reg);
??????????? if (r == null) {
??????????????? var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/;
??????????????? var r = dateString.match(reg);
??????????? }
??????????? return r != null;
??????? }
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