TRY:for (i=0; i < form1.elements.length; i++)
{
if (form1.elements[i].name == "t1" && form1.elements[i].value.length != 0)
{
if (/\D/.test(form1.elements[i].value) && form1.elements[i].value > 0)
{
alert("不符合要求!");
}
}
}
{
if (form1.elements[i].name == "t1" && form1.elements[i].value.length != 0)
{
if (/\D/.test(form1.elements[i].value) && form1.elements[i].value > 0)
{
alert("不符合要求!");
}
}
}
{
if (form1.t1[i].value.search(/^\d+$/)==-1) {alert('错误');return false;}
return true;
}
{
if (form1.t1[i].value>0 {alert('错误');return false;}
return true;
}
{
if (form1.t1[i].value.search(/^0*\d+$/)==-1) {alert('错误');return false;}
return true;
}
{
for(var i=0;i<=form1.t1.length-1;i++)
{
if (Number(form1.t1[i].value)<=0) {alert('错误');return false;}
}
return true;}
{var tval;
for(var i=0;i<=form1.t1.length-1;i++)
{
if ((tval=Number(form1.t1[i].value))<=0 || isNaN(tval)) {alert('错误');return false;}
}
return true;}
<input type=text name="t1">
<input type=text name="t1">
<input type=text name="t1">
<input type="button" onclick="for(var i=0,obj=forms[0].all.namedItem('t1'),t=new Array();i<obj.length;i++){t[i]=obj[i].value>0};if(t[0]&&t[1]&&t[2]){alert('成功')}">
</form>