代码如下:
function check() {
if (document.getElementById("psd").value !=
document.getElementById("psd1").value) {
document.getElementById("warning").innerHTML = " 两次密码的输入不一致";
} else {
document.getElementById("warning").innerHTML = " ";
}
}
str += "性别:" + GetRadioValue("sex").value + "\n";
<tr> <td style="text-align:right;"> 性别</td><td >
<input class="py" type="radio" name="sex" id="sex" value="男" checked="checked" />男
<input class="py" type="radio" name="sex" value="女" />女 </td> </tr>
结果就是输出了性别undefined