function showMapLayer(mapid, visible){
var layers = mapControl.getMap().get_imageLayers();
if(layers) {
for(var i = 0; i < layers.length; i++) {
var layer = layers[i];
if(layer.get_id() == mapid) {
if(visible){
layer.show();
}else{
layer.hide();
}
return;
}
}
}
转载于:https://www.cnblogs.com/j3eee/archive/2009/08/28/1555872.html