The len argument defines how much data in buff is being written.
len参数定义了在buff中有多少数据要被写入。
Pamuling, western Sichuan: the best place in the world to view the buff-throated partridge.
川西的帕母岭：世界里的最好观四川雉鹑的地点。
Pamuling, western Sichuan: the best place in the world to view the buff-throated partridge.
川西的帕母岭：世界里的最好观四川雉鹑的地点。
应用推荐