一个日期时间的字符串咋转成时间戳

        // let data1 = this.fzTime[0] + ` ` + '00:00:00'
        // let data2 = this.fzTime[1] + ` ` + '00:00:00'

        // let params = {
        //   startDate: new Date(data1.replace(/-/g, '/')).getTime(),
        //   endDate: new Date(data2.replace(/-/g, '/')).getTime()
        // }