To prepare for the stress test, why don't you agree with Brother Test Hao? . If we don't push you, don't do it? ? ?
1. In short, the efforts are not enough, it may also be the wrong direction and the wrong method.
2. The efficiency is not high enough
3. The code is unfamiliar, but the timeout problem is obviously not located
4. No idea, all waiting to get the job done
5. It's been half a year since caching. Why don't you make a plan and always wait to be pushed to work. .