把以下日期varstr='2018-07-0914:13:1

str= str.replace(new RegExp("-","gm"),"/");
var startDateM = (new Date(str)).getTime(); //得到毫秒数

var arr = str.split(/[- : \/]/);
var startDate = Date.parse(new Date(arr[0], arr[1]-1, arr[2], arr[3], arr[4], arr[5]));

var oldTime = new Date(str.trim().replace(/-/g, '/')).getTime();

var startDate = Date.parse(new Date(arr[0], arr[1]-1, arr[2], arr[3], arr[4], arr[5]));