每隔一秒钟在javascript中显示和隐藏元素

我想每隔一秒钟隐藏并查看html中的一些元素。我用JavaScript编写了这段代码。hello（）从主html调用onload。然后它启动计时器，并调用函数go！我想每一秒都会改变它显示的内容

function hello() {

myTimer();


}
var indexx = 0;
function myTimer(){
var myVar1=setInterval(function(){go1()},1000);
}
function go1()
{

 if(indexx==0)
    {
        var results = document.getElementById("water_2_5");
        results.setAttributeNS(null,"visibility","hidden");
        var results = document.getElementById("water_2_1");
        results.setAttributeNS(null,"visibility","visible");

        indexx+=1;

    }   else
    if(indexx==1)
    {
        results = document.getElementById("water_2_1");
        results.setAttributeNS(null,"visibility","hidden");
        //
        var results = document.getElementById("water_2_7");
        results.setAttributeNS(null,"visibility","visible");


        indexx+=1;

    }
    if(indexx==2)
    {
    results = document.getElementById("water_2_7");
        results.setAttributeNS(null,"visibility","hidden");
        //
        var results = document.getElementById("water_2_6");
        results.setAttributeNS(null,"visibility","visible");


        indexx+=1;

    }
    if(indexx==3)
    {
    results = document.getElementById("water_2_6");
        results.setAttributeNS(null,"visibility","hidden");
        //
        var results = document.getElementById("water_2_5");
        results.setAttributeNS(null,"visibility","visible");

                indexx=0;
        }

}

但它只向我展示了第一部分和最后一部分？ 有人能帮我怎么做到吗

答案是：

function hello() {

myTimer();


}
var indexx = 0;
function myTimer(){
var myVar1=setInterval(function(){go1()},1000);
}
function go1()
{

 if(indexx==0)
    {
        var results = document.getElementById("water_2_5");
        results.setAttributeNS(null,"visibility","hidden");
        var results = document.getElementById("water_2_1");
        results.setAttributeNS(null,"visibility","visible");

        indexx+=1;

    }   else
    if(indexx==1)
    {
        results = document.getElementById("water_2_1");
        results.setAttributeNS(null,"visibility","hidden");
        //
        var results = document.getElementById("water_2_7");
        results.setAttributeNS(null,"visibility","visible");


        indexx+=1;

    } else
    if(indexx==2)
    {
    results = document.getElementById("water_2_7");
        results.setAttributeNS(null,"visibility","hidden");
        //
        var results = document.getElementById("water_2_6");
        results.setAttributeNS(null,"visibility","visible");


        indexx+=1;

    }else 

    {
    results = document.getElementById("water_2_6");
        results.setAttributeNS(null,"visibility","hidden");
        //
        var results = document.getElementById("water_2_5");
        results.setAttributeNS(null,"visibility","visible");

                indexx=0;
        }

}

---

将所有

if

语句（在第一个语句之后）设置为

else if

，将它们分组。这样，块内的增量（

indexx+=1；

）不会导致下一个

if

为真。

您需要使用

else if

语句，而不仅仅是

if

哦，现在我注意到了！！！全天编程！我想我看到了一个

else if

，但另一个

if

语句需要它，所以它们被组合在一起，只有一个可以满足Hanks guys。那就是虫子！！