Node.js编程时fs.renameSync出错

Node.js编程时fs.renameSync出错，错误信息如下：

fs.js:543  return binding.rename(pathModule._makeLong(oldPath),

Error: EXDEV, cross-device link not permitted 'C:\Users\Jonsan\AppData\Local\Temp\28f357d322af17283c97d8b8ea920b19'

解决方案：

+    var is = fs.createReadStream(files.upload.path);+    var os = fs.createWriteStream("F:\\node\\picture\\test.png");+    is.pipe(os);+    is.on('end',function(){+        fs.unlinkSync(files.upload.path);+    });-    //fs.renameSync(files.upload.path, "F:\\node\\picture\\test.png");

参考：http://stackoverflow.com/questions/4568689/how-do-i-move-file-a-to-a-different-partition-or-device-in-node-js