def uris_to_paths(uris):
source_paths = []<EOL>for uri in uris:<EOL><INDENT>source_path = uri_to_path(uri)<EOL>if source_path:<EOL><INDENT>source_paths.append(source_path)<EOL><DEDENT><DEDENT>return source_paths<EOL>
将一串URI地址转为绝对路径, 用于处理桌面程序中的文件拖放