End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
Linux内核的Makefile中cmd-check是如何检查前后两次执行的命令是一致的? https://codingnote.cc/zh-tw/p/64499/