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我有一个聊天箱,我正在使用onclick属性来调用一个函数。我只是想通过使用javascript按下Enter键来调用这个函数。当输入键被按下时调用javascript函数
<input id="Submit" class="btn btn-primary btn-lg" type="button" value="Send Message" onclick="set_chat_msg()"/>
的Javascript:
function set_chat_msg()
{
if(typeof XMLHttpRequest != "undefined")
{
oxmlHttpSend = new XMLHttpRequest();
}
else if (window.ActiveXObject)
{
oxmlHttpSend = new ActiveXObject("Microsoft.XMLHttp");
}
if(oxmlHttpSend == null)
{
alert("Browser does not support XML Http Request");
return;
}
var url = "chat_send_ajax.php";
var strname="noname";
var strmsg="";
if (document.getElementById("txtname") != null)
{
strname = document.getElementById("txtname").value;
document.getElementById("txtname").readOnly=true;
}
if (document.getElementById("txtmsg") != null)
{
strmsg = document.getElementById("txtmsg").value;
document.getElementById("txtmsg").value = "";
}
url += "?name=" + strname + "&msg=" + strmsg;
oxmlHttpSend.open("GET",url,true);
oxmlHttpSend.send(null);
}
。 – Lance
[如何检测何时使用按Enter键输入字段]可能的重复(http://stackoverflow.com/questions/11365632/how-to-detect-when-use-press-enter-in-input-field) – JFlox