js 生成随机颜色样式，并赋值给表单元素

function setColor() {
$("span.cm-variable").each(function(){
$(this).css("color",generateColor());

};

function generateColor() {
var cNumR = Math.random()*255;
var cNumG = Math.random()*255;
var cNumB = Math.random()*255;
var color = "rgb("+cNumR+","+cNumG+","+cNumB+")";
return color;
}

 

来源：https://www.cnblogs.com/rdchen/p/12518959.html