如题,下拉框能够正常判断,但是不只能alert下面的命令,另外每个id都是对的
function ChangeData()
{for (var i = 0; i < document.getElementById("sq").options.length; i++) {
if (document.getElementById("sq").options[i].selected && (document.getElementById("sq").options[i].text == "时间" ))
{
alert("时间");
document.getElementById("sq3").style.display="none";
document.getElementById("sq2").style.display="none";
document.getElementById("sq1").style.display="block";}
else if (document.getElementById("sq").options[i].selected && (document.getElementById("sq").options[i].text == "角色编码" ))
{
alert("角色显示");
document.getElementById("sq3").style.display="none";
document.getElementById("sq2").style.display="block";
document.getElementById("sq1").style.display="none";}
else if (document.getElementById("sq").options[i].selected && (document.getElementById("sq").options[i].text != "角色编码" )&&(document.getElementById("sq").options[i].text != "时间" ))
alert("选项好");
document.getElementById("sq3").style.display="block";
document.getElementById("sq2").style.display="none";
document.getElementById("sq1").style.display="none";}}
function ChangeData()
{
for (var i = 0; i < document.getElementById("sq").options.length; i++)
{
if (document.getElementById("sq").options[i].selected && (document.getElementById("sq").options[i].text == "时间" ))
{
alert("时间");
document.getElementById("sq3").style.display="none";
document.getElementById("sq2").style.display="none";
document.getElementById("sq1").style.display="block"; }
else if (document.getElementById("sq").options[i].selected && (document.getElementById("sq").options[i].text == "角色编码" ))
{
alert("角色显示");
document.getElementById("sq3").style.display="none";
document.getElementById("sq2").style.display="block";
document.getElementById("sq1").style.display="none";
}
else if (document.getElementById("sq").options[i].selected && (document.getElementById("sq").options[i].text != "角色编码" )&&(document.getElementById("sq").options[i].text != "时间" ))
{
alert("选项好");
document.getElementById("sq3").style.display="block";
document.getElementById("sq2").style.display="none";
document.getElementById("sq1").style.display="none";
}
}
}