{
"title": "Lua 调试",
"content": {
"introduction": "Lua 是一种轻量级的脚本语言,广泛用于游戏开发、嵌入式系统等领域。调试是开发过程中不可或缺的一部分,Lua 提供了多种工具和库来帮助开发者进行调试。",
"常用调试函数": {
"traceback": "用于获取调用栈信息,帮助理解代码执行流程。",
"getinfo": "返回关于函数的信息,如行号、文件名等。"
},
"实例一": {
"description": "使用 `debug.traceback` 和 `debug.getinfo` 函数来打印函数的调用栈和信息。",
"code": "function myfunction ()\n print(debug.traceback(\"Stack trace\"))\n print(debug.getinfo(1))\n print(\"Stack trace end\")\n return 10\nend\nmyfunction ()\nprint(debug.getinfo(1))"
},
"实例二": {
"description": "使用 `debug.setupvalue` 和 `debug.getupvalue` 函数来设置和查看局部变量的值。",
"code": "function newCounter ()\n local n = 0\n local k = 0\n return function ()\n k = n\n n = n + 1\n return n\n end\nend\ncounter = newCounter ()\nprint(counter())\nprint(counter())\nlocal i = 1\nrepeat\n name, val = debug.getupvalue(counter, i)\n if name then\n print (\"index\", i, name, \"=\", val)\n if(name == \"n\") then\n debug.setupvalue (counter,2,10)\n end\n i = i + 1\n end\nuntil not name\nprint(counter())"
},
"调试类型": {
"命令行调试器": [
"RemDebug",
"clidebugger",
"ctrace",
"xdbLua",
"LuaInterface - Debugger",
"Rldb",
"ModDebug"
],
"图形界面调试器": [
"SciTE",
"Decoda",
"ZeroBrane Studio",
"akdebugger",
"luaedit"
]
}
}
}