SOURCE

function writeDocument(variable) {
    document.write(variable + "<br/>");
} 

writeDocument("最大值,最小值-----------------------------------------------");
writeDocument("最大值:"+Math.max(1,3,9,10,18,999));
writeDocument("最小值:"+Math.min(1,3,9,10,18,999));

writeDocument("生成4位数随机验证码”。-----------------------------------------------");
function generateVerifyCode(length){
    var strLetterNumber="0123456789ABCDEFGHIJKLMNOPQRST";
    var code="";
    for(var i=0;i<length;++i){
        var randomNumber=Math.floor(Math.random()*strLetterNumber.length);
        code=code+strLetterNumber.charAt(randomNumber);
    }
    return code;
}
writeDocument(generateVerifyCode(4));
writeDocument(generateVerifyCode(5));
writeDocument(generateVerifyCode(6));

writeDocument("生成随机颜色 rgb(255,255,255)”。-----------------------------------------------");
function getRandomColor(){
    var r= Math.floor(Math.random() * (255 + 1));
    var g= Math.floor(Math.random() * (255 + 1));
    var b= Math.floor(Math.random() * (255 + 1));
    var rgb = "rgb(" + r + "," + g + "," + b + ")";
    return rgb;
}
document.write(getRandomColor());
console 命令行工具 X clear

                    
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console