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URL url = new URL(strUrl);
BufferedInputStream bis = new BufferedInputStream(url.openStream()); //ÓÃbuffer
OutputStream os = new FileOutputStream(new File(path + newName));
byte[] bytes = new byte[1024];
int len;
while((len = bis.read(bytes)) > 0) { //Ñ»·¶ÁÈ¡1024×Ö½Ú
os.write(bytes, 0, len); //дÈë1024×Ö½Ú
}
bis.close();
os.flush();
os.close();
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