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                企業??AI智能體構建引擎,智能編排和調試,一鍵部署,支持知識庫和私有化部署方案 廣告
                - 支持單引號,多引號,[["字符串"]]三種;\n換行,\t制表,\\本身,\' \"單雙引號 ~~~ arg = string.upper(arg) 轉換大小 lower小寫 reverse反轉字符 string.gsub("aaaa","a","z",3); 查找a替換成c,次數3,忽略次數是全部 string.find("Hello Lua user", "Lua"); 查找lua返回位置7,從1開始,不才尊返回nil,php中空白 string.format("the value is:%d",4) 格式化字符 string.char(97,98,99,100) 返回abcd string.byte("ABCD",4) 68第四個 不填是第一個 string.len("abc") 3 中文一個是3 string.rep("abcd",2) 返回拷貝數 ~~~ - 數組下標從1開始 ~~~ array = {"Lua", "Tutorial"} 一維數組 ~~~ - 表,刪除表mytable = nil ~~~ tables={} tables[1]="aaaa" table.concat(fruits,", ", 2,3) 鏈接字符 table.insert(fruits,"mango") 插入元素,默認在尾部,可以指定索引table.insert(fruits,2,"mango") table.remove(fruits) 刪除最后一個 table.sort(fruits) 排序 ~~~ - 模塊,表去實現,require "mod" ~~~ module = {} module.a="常量" function module.func1() io.write("這是一個公有函數!\n") end local function func2() print("這是一個私有函數!") end function module.func3() func2() end return module ~~~ - 讀取輸出文件 ~~~ file=io.open("1.txt","a+") w+會清0 a+是追加 不存在會自動創建文件 io.input(file) arg=io.read("*a") io.output(file) io.write("-- ?test.lua 文件末尾注釋") io.close(file) ~~~
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