<HTML>
<HEAD>
<TITLE> test </TITLE>
</HEAD> <BODY>
<script language="javascript">
function getNumber()
{
alert();
}
</script>
</BODY>
<form name = "myForm">
<input type = "button" name = "myButton" value = "1">
<input type = "button" name = "myButton" value = "2">
<input type = "button" name = "myButton" value = "3">
</form>
</HTML>请问各位大侠如何用js弹出每个input的值啊?
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var t = document.getElementsByTagName("input");
for(var i=0; i<t.length; i++){
alert(t[i].value);
}
}
var t = document.getElementsByTagName("input");
for(var i=0; i<t.length; i++){
alert(t[i].value);
}
}
<HTML>
<HEAD>
<TITLE> test </TITLE>
</HEAD> <BODY>
<script language="javascript">
function getNumber()
{
alert();
}
</script>
</BODY>
<form name = "myForm">
<input type = "text" name = "myText" value = "0">
<input type = "button" name = "myButton" value = "1">
<input type = "button" name = "myButton" value = "2">
<input type = "button" name = "myButton" value = "3">
</form>
</HTML>
function getNumber(){
var re = [];
var t = document.getElementsByTagName("input");
for(var i=0; i<t.length; i++){
if(r[i].type=="button"){
re.push(t[i].value);
}
}
document.myForm.myText.value = re.join("");
}
说type未定义,不知道原因
<HEAD>
<TITLE> test </TITLE>
<script language="javascript">
function showSingleInputValue(n){
alert('第三个Input的值为:'+document.getElementsByTagName("myButton")[n].value);
}function showAllInputValue(){
var o = document.getElementsByTagName("INPUT");//取得所有Input对象集合;
var arr=[];//定义一个数组用来存放Input对象值
for(var i=0; i<o.length; i++){
arr.push(o[i].value);//将各个Input对象值压入数组
}
document.getElementsByName("myText")[0].value=arr.jion(",")
alert('共有'+o.length+'个Input对象,其值分别为:'+arr);
}window.onload=function(){
showAllInputValue()//页面加载完毕后显示所有Input对象的值
}
</script>
</HEAD> <BODY>
<form name = "myForm">
<input type = "text" name = "myText" value = "0">
<input type = "button" name = "myButton" value = "1">
<input type = "button" name = "myButton" value = "2">
<input type = "button" name = "myButton" value = "3">
</form>
<input type = "button" name = "showSingleButtonValue" value = "显示第三个Input对象的值" onclick="showSingleInputValue(2)" />
</BODY>
</HTML>
<HTML>
<HEAD>
<TITLE> test </TITLE>
<script language="javascript">
function showSingleInputValue(n){
alert('第三个Input的值为:'+document.getElementsByTagName("INPUT")[n].value);
}function showAllInputValue(){
var o = document.getElementsByTagName("INPUT");//取得所有Input对象集合;
var arr=[];//定义一个数组用来存放Input对象值
for(var i=0; i<o.length; i++){
arr.push(o[i].value);//将各个Input对象值压入数组
}
alert('共有'+o.length+'个Input对象,其值分别为:'+arr);
document.getElementsByName("myText")[0].value=arr.join(",");
}window.onload=function(){
showAllInputValue()//页面加载完毕后显示所有Input对象的值
}
</script>
</HEAD> <BODY>
<form name = "myForm">
<input type = "text" name = "myText" value = "0">
<input type = "button" name = "myButton" value = "1">
<input type = "button" name = "myButton" value = "2">
<input type = "button" name = "myButton" value = "3">
</form>
<button onclick="showSingleInputValue(2)">显示第三个Input对象的值</button>
</BODY>
</HTML>
<HEAD>
<TITLE> test </TITLE>
<script language="javascript">
function getnumber(n){
if(document.getElementById("myText").value==0)document.getElementById("myText").value='';
document.getElementById("myText").value +=n;
}
</script>
</HEAD> <BODY>
<form name = "myForm">
<input type = "text" id = "myText" name = "myText" value = "0">
<input type = "button" name = "myButton" value = "1" onclick="getnumber(this.value)" />
<input type = "button" name = "myButton" value = "2" onclick="getnumber(this.value)" />
<input type = "button" name = "myButton" value = "3" onclick="getnumber(this.value)" />
</form>
</BODY></HTML>