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<div class="row">
<span class="input-group-addon">出發城市</span>
<input type="text" name="CITYFROM" id="addCityFrom" class="form-control" value=cityFromArray[0]> --数组0就是起点
<span class="input-group-addon">详细地址</span>
<input type="text" name="ADDFROM" id="addFrom" class="form-control" value=addFromArray[0]>
</div>
<div class="row">
<span class="input-group-addon">到達城市</span>
<input type="text" name="CITYFROM" id="endCityFrom" class="form-control" value=cityFromArray[cityFromArray.lenght-1]> --数组长度-1就是终点
<span class="input-group-addon">详细地址</span>
<input type="text" name="ADDFROM" id="endFrom" class="form-control" value=addFromArray[addFromArray.lenght-1]>
</div>
var cityFrom = $("input[name='CITYFROM']").val()
var cityFromArray = new Array(); //定义一数组
cityFromArray = cityFrom.split(","); //字符分割
alert(cityFrom) 输出“北京市,上海市 ”
alert(cityFromArray[0]) 输出“北京市”
alert(cityFromArray[1]) 输出“上海市 ”
alert(cityFromArray[cityFromArray.lenght-1]) 这个怎么是“undefined”
var aa = cityFromArray.lenght
alert(aa)我尝试接收数组长度输出也是“undefined”


var cityFrom = $("input[name='CITYFROM']").val()
var cityFromArray = new Array(); //定义一数组
cityFromArray = cityFrom.split(",") //字符分割
document.getElementById("addCityFrom").value = cityFromArray[0]
document.getElementById("endCityFrom").value = cityFromArray[cityFromArray.length - 1]