仿双色球-随机产生7个数字

查看Demo

 

'btn'>35选7
'div1'>

 

window.onload = function(){
    
    var oBtn = document.getElementById('btn');
    var oDiv = document.getElementById('div1');
    
    oBtn.onclick = function(){
        oDiv.innerHTML = randomNum(35,7);
    }
    
}
    
    function randomNum(allPara,nowPara){
            
        var arr = [];
        
        var resultArr = [];
        
        for(var i=1;i<=allPara;i++){
                arr.push(i);
        }
        
        for(var i=0;i){
                resultArr.push(arr.splice(Math.floor(Math.random()*arr.length),1));
        }    
        return resultArr;
    
    }

 

转载于:https://www.cnblogs.com/wanliyuan/p/4272295.html