最原始的写法: b264e3425da1aedeb82245a1b0afe8aa000 结果:702-968ms 改进的写法: b264e3425da1aedeb82245a1b0afe8aa001 结果:484-600ms 另外一种写法: b264e3425da1aedeb82245a1b0afe8aa002 结果:674-826ms...