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.
重学 Java 设计模式:实战备忘录模式「模拟互联网系统上线过程中,配置文件回滚场景」 https://codingnote.cc/zh-sg/p/144138/