To implement compare and swap in Redis using Lua scripts, we first fetch the current value using theGETcommand. We then check if the current value matches our expected value. If it does, we update the value using theSETcommand, otherwise we do nothing. This entire process is executed atomic...
LUA脚本实现原子性的get and compare publicvoidsafedUnLock(String key, String val) { String luaScript= "local in = ARGV[1] local curr=redis.call('get', KEYS[1]) if in==curr then redis.call('del', KEYS[1]) end return 'OK'""; RedisScript<String> redisScript =RedisScript.of(luaScrip...
在Lua中,遇到“attempt to compare nil with number”错误通常意味着你的代码试图将一个值为nil的变量与一个数字进行比较。这种操作在Lua中是不允许的,因为nil不能与其他类型的值进行比较。下面是对这个问题的详细解答: 1. 解释“attempt to compare nil with number”错误的含义 这个错误表明在Lua程序中,你试图...
你这里有一个误区lua本身不带这么多种的功能和函数源生的全局函数可能就三四十个而相关的函数主要来自两个地方一是lua代码里写的,即你自己写的lua文件里的函数二是宿主语言提供的类似更新之类的功能明显是已经应用在某个工程里了所以你这里问的这个问题网上是没人能答的上了只能在你自己的工程里找答案一...
Exception in thread "main" com.naef.jnlua.LuaRuntimeException: ...\ldt\workspace\test\src\5.1return multiple value.lua:10: attempt to compare nil with number at com.naef.jnlua.LuaState.lua_pcall(Native Method) at com.naef.jnlua.LuaState.call(LuaState.java:555) at org.eclipse.koneki....
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报错:Exceptioninthread"main"com.naef.jnlua.LuaRuntimeException:...\ldt\workspace\test\src\5.1returnmultiplevalue.lua:10:attempttocomparenilwithnumber atcom.naef.jnlua.LuaState.lua_pcall(NativeMethod) atcom.naef.jnlua.LuaState.call(LuaState.java:555) atorg.eclipse.koneki.ldt.support.lua51.inter...
Exception in thread "main" com.naef.jnlua.LuaRuntimeException: ...\ldt\workspace\test\src\5.1return multiple value.lua:10: attempt to compare nil with number at com.naef.jnlua.LuaState.lua_pcall(Native Method) at com.naef.jnlua.LuaState.call(LuaState.java:555) at org.eclipse.koneki....
Lua 尝试返回多个值,attempt to compare nil with number--[[s,e=string.find("helloLuausers","Lua")print(s,e)--]]functionmaximum(a)localmi=llocalm=a[mi]fori,valinipairs(a)doifval>mthen mi=i m=val end end returnm,mi end三国纷争 浏览3417回答2 2回答...