API地图坐标转化（批量转换坐标）
```html
谷歌地图
鼠标点击的谷歌坐标是：
百度地图
鼠标点击的百度坐标是：（）
```
```javascript // (function(){ function loadscript(xyUrl, callback){ var head = document.getElementsByTagName(‘head‘)[0]; var script = document.createElement(‘script‘); script.type = ‘text/javascript‘; script.src = xyUrl; //借鉴了jQuery的script跨域方法 script.onload = script.onreadystatechange = function(){ if((!this.readyState || this.readyState === "loaded" || this.readyState === "complete")){ callback && callback(); // Handle memory leak in IE script.onload = script.onreadystatechange = null; if ( head && script.parentNode ) { head.removeChild( script ); } } }; // Use insertBefore instead of appendChild to circumvent an IE6 bug. head.insertBefore( script, head.firstChild ); } function transMore(points,type,callback){ for(var index in points){ if(index > 50){return;} var xyUrl = "http://api.map.baidu.com/ag/coord/convert?from=" + type + "&to=4&x=" + points[index].lng + //这里要循环读入数组points的lng数据，直到points.length完毕。 "&y=" + points[index].lat + "&callback=callback"; //动态创建script标签 loadscript(xyUrl); } }
window.BMap = window.BMap || {}; BMap.Convertor = {}; BMap.Convertor.transMore = transMore; })(); ```