最原始的写法: 7b062935f708ce1cb169553e600a2c4b000 结果:702-968ms 改进的写法: 7b062935f708ce1cb169553e600a2c4b001 结果:484-600ms 另外一种写法: 7b062935f708ce1cb169553e600a2c4b002 结果:674-826ms...