最原始的写法: 142ca05c36c92a5dd9e020e7fae63439000 结果:702-968ms 改进的写法: 142ca05c36c92a5dd9e020e7fae63439001 结果:484-600ms 另外一种写法: 142ca05c36c92a5dd9e020e7fae63439002 结果:674-826ms...