百度地图开发：批量增加折线、多边形覆盖物的封装函数

绘制折线

//绘制折线;
function drawLine(data) {
    //数据格式;
    //var data = ["116.399, 39.910;116.405, 39.920;116.423493, 39.907445", "116.405, 39.920;116.41248,39.927893"];
    var opts = {strokeColor: "blue", strokeWeight: 2, strokeOpacity: 0.5};
    for (var j = 0; j