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嗨,我正在使用此代码在谷歌地图中使用get-directions.但是当我从其他机器运行它时,它显示错误无效的api密钥.如何在没有api密钥的情况下使用同一个地图.

<script src="http://maps.google.com/maps?file=api&amp;v=2&amp;sensor=false&amp;key=ABQIAAAAuPsJpk3MBtDpJ4G8cqBnjRRaGTYH6UMl8mADNa0YKuWNNa8VNxQCzVBXTx2DYyXGsTOxpWhvIG7Djw" type="text/javascript"></script>
    <style type="text/css">
    body {
      background:#FFE1C7;
      font-family: Verdana, Arial, sans serif;
      font-size: 11px;
      margin: 2px;
    }
table.directions th {
      background-color:#EEEEEE;
    }

    img {
      color: #000000;
    }
    </style>
    <script type="text/javascript">

    var map;
    var gdir;
    var geocoder = null;
    var addressMarker;

    function initialize() {
      if (GBrowserIsCompatible()) {      
        map = new GMap2(document.getElementById("map_canvas"));
        gdir = new GDirections(map, document.getElementById("directions"));
        GEvent.addListener(gdir, "load", onGDirectionsLoad);
        GEvent.addListener(gdir, "error", handleErrors);

        setDirections("Bangalore", "Mysore", "en_US");
      }
    }

    function setDirections(fromAddress, toAddress, locale) {
      gdir.load("from: " + fromAddress + " to: …