JS 百分数和小数的相互转化

百分数转小数

1.先去掉百分号 2.再除以100 3.返回出去

            var percent = "4.2%";
	function toPoint(percent){
	 	var str=percent.replace("%","");
		        str= str/100;
	 	return str;
	}
	var result = toPoint(percent); //0.042

小数转百分数

	var point = 0.042;
	function toPercent(point){
		var percent = Number(point*100).toFixed(1);
		percent+="%";
		return percent;
	}
  	 var result = toPercent(point);