[（1）参数优化](%EF%BC%881%EF%BC%89%E5%8F%82%E6%95%B0%E4%BC%98%E5%8C%96.md) [（2）代码优化](%EF%BC%882%EF%BC%89%E4%BB%A3%E7%A0%81%E4%BC%98%E5%8C%96.md)