（二）主动消除或者减轻违法后果的；
sort palette by luminance。下载安装 谷歌浏览器 开启极速安全的 上网之旅。对此有专业解读
// 步骤3：从后往前遍历数组（反向遍历更易理解，每个元素只入栈/出栈一次）。关于这个话题，爱思助手下载最新版本提供了深入分析
The sweeping revisions to the agency's program came during an update on repairs to the Space Launch System rocket, which will launch Artemis II, a 10-day lunar flyby mission with a crew, as early as April.