函数colorRandom1 () {
var r=Math.floor 51 (math . random () * + 200);
var g=Math.floor 51 (math . random () * + 200); b
var=Math.floor 51 (math . random () * + 200);
返回的rgb (+ r +, + g +, + b +)的;
}
var div=document.body.getElementsByTagName (div) [0];
div.style。背景=colorRandom ();
div.setAttribute(“风格”,“颜色:”+ colorRandom() +“;背景:”+ colorRandom ());