目录1、实现锁的方法1.1. setnx命令1.2. 带过期时间的锁1.3. 原子命令（推荐）1.4. RedLock算法详解1.实现原理2.设计目的3.关键保障机制4.局限性1.5. 防护令牌（Fencing Token）模式1.6. 看门狗机制2、使用场景3、Re
I need to delete all the lines on a subplot, to then redr开发者_如何学Pythonaw them (i\'m making a redraw function to be used when i add/remove some lines)
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