<INPUT type="radio" value="0" name="r1" onclick="document.all.haha.style.display='';"> 是
<INPUT type="radio" value="1" name="r2" onclick="document.all.haha.style.display='none';"> 否
<INPUT type="text" name="haha">
<INPUT type="radio" value="1" name="r2" onclick="document.all.haha.style.display='none';"> 否
<INPUT type="text" name="haha">
<INPUT type="radio" value="1" name="r1" onclick="document.all.haha.style.display='none';" 车checked> 否
<INPUT type="text" name="haha" style="display:none">
function doHidden(objRadioButton)
document.all.haha.style.display=(objRadioButton.value==0)?'':none'';
</script><INPUT type="radio" value="0" name="r1" onclick="doHidden(this)"> 是
<INPUT type="radio" value="1" name="r2" onclick="doHidden(this)"> 否 <INPUT type="text" name="haha">
不好意思,初学Javascript
<input>
<input>
<input>
<input>
</div>
<INPUT type="radio" value="0" name="r1" onclick="if(this.checked)div.style.display=''"> 是
<INPUT type="radio" value="1" name="r1" onclick="if(this.checked)div.style.display='none'"> 否
<div style="display:none" id='div'>
<input type=text><br>
<input type=text><br>
<input type=text>
</div>