最原始的写法: a8d9616db2ef204340254a7649af913d000 结果:702-968ms 改进的写法: a8d9616db2ef204340254a7649af913d001 结果:484-600ms 另外一种写法: a8d9616db2ef204340254a7649af913d002 结果:674-826ms...