Method padZero

mini_program/common/Tools.js:769–775

(num, targetLength = 2)

	
	// 补0，如1 -> 01
	padZero(num, targetLength = 2) {
	    let str = `${num}`
	    while (str.length < targetLength) {
	        str = `0${str}`
	    }
	    return str
	}
	
	parseTimeData(time) {
		const SECOND = 1000