var maxNum = 100;
var minNum = 1;
parseInt(Math.random()*(maxNum-minNum+1)+minNum,10)


var userAgent = window.navigator.userAgent.toUpperCase();

/**
 * 获取系统名称，安卓或者ios
 */
function getOS() {
    if (userAgent.indexOf("ANDROID") > -1) {
        return "ANDROID";
    } else if (userAgent.indexOf("IPHONE") > -1){
        return "IOS";
    }
}