数字转化成百分数
1.先转化为number类型
2.再乘以100
3. toFixed() 作用保留几位小数位
var point = 0.666;function toPercent(point){var percent = Number(point*100).toFixed(1);percent += "%";return percent;}var result = toPercent(point);document.write("
"+result);
2,百分数转化为小数
1.先去掉百分号,
2.再除以100,
3.返回出去
var percent = "66.6%";function toPoint(percent){var str=percent.replace("%","");str= str/100;return str;}toPoint(percent);var result = toPoint(percent);document.write(result);
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