<script>
function mycheck()
{
j=0;
for(var i=0 ;i<document.all.sel_syukei.length;i++){
if(document.all.sel_syukei[i].checked == true)
j++;
}
alert("您选中了"+j+"项");
}
</script>
<input type=checkbox name=sel_syukei>1
<input type=checkbox name=sel_syukei>2
<input type=checkbox name=sel_syukei>3
<input type=checkbox name=sel_syukei>4
<input type=button value=submit onclick=myckeck()>
function mycheck()
{
j=0;
for(var i=0 ;i<document.all.sel_syukei.length;i++){
if(document.all.sel_syukei[i].checked == true)
j++;
}
alert("您选中了"+j+"项");
}
</script>
<input type=checkbox name=sel_syukei>1
<input type=checkbox name=sel_syukei>2
<input type=checkbox name=sel_syukei>3
<input type=checkbox name=sel_syukei>4
<input type=button value=submit onclick=myckeck()>
解决方案 »
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