Javascript 我如何得到结果,比较越来越大,越来越小
当给定某个值时,我想根据尺寸调整视频质量Javascript 我如何得到结果,比较越来越大,越来越小,javascript,html,comparison,vote,Javascript,Html,Comparison,Vote,当给定某个值时,我想根据尺寸调整视频质量 试试看 函数myFunction(){ 变量年龄,en,可吐; 年龄=document.getElementById(“年龄”).value; voteable=(720>年龄
试试看
函数myFunction(){
变量年龄,en,可吐;
年龄=document.getElementById(“年龄”).value;
voteable=(720>年龄<1080)?“SD”:“HD”:“FHD”;
document.getElementById(“demo”).innerHTML=“质量:”+voteable;
}
试试这个
<input id="age" value="500" />
<button onclick="test()">Try it</button>
<p id="demo"></p>
<script>
function test() {
var age = document.getElementById("age").value;
if (1080<=age) {
document.getElementById("demo").innerHTML = "Quality: FHD";
}
else if (720<=age) {
document.getElementById("demo").innerHTML = "Quality: HD";
}
else if (age<720) {
document.getElementById("demo").innerHTML = "Quality: SD";
}
}
</script>
试试看
功能测试(){
var age=document.getElementById(“age”).value;
如果(1080)您想要ageSD
,720