//导出单张影像到Drive中

var landsat = ee.Image('LANDSAT/LC8_L1T_TOA/LC81230322014135LGN00')

.select(['B4', 'B3', 'B2']);

var geometry = ee.Geometry.Rectangle([116.2621, 39.8412, 116.4849, 40.01236]);

Map.centerObject(geometry, 7);

Map.addLayer(geometry, {}, "geometry");

// To Drive

Export.image.toDrive({

image: landsat,

description: 'imageToDriveExample',

scale: 30,

region: geometry

});

那么如何导出多张影像到Drive中，直接上代码

//export collection 导出imageCollection

var collection = ee.ImageCollection('LANDSAT/LC8_L1T_TOA')

      .filter(ee.Filter.eq('WRS_PATH', 44))

      .filter(ee.Filter.eq('WRS_ROW', 34))

      .filterDate('2015-01-01', '2015-04-01');

print('Collection: ', collection);

var colList = collection.toList(100);

//这里需要注意的是获取长度使用的是getInfo()，直接通过size()是不可以的

var n = colList.size().getInfo();

print("n is: ", n);

for (var i = 0; i < n; i++) {

var img = ee.Image(colList.get(i));

var id = img.id();

print("id is: ", id);

var bounds = img.geometry().bounds();

print("bounds is: ", bounds);

// var region = bounds.coordinates;

Export.image.toDrive({

  image:img.toFloat(),

  description: "L8_Export:"+id.getInfo(),

  region: bounds,

  scale: 30,

  maxPixels: 999999999999});

}