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在golang里调用lua函数
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package main | |
import ( | |
"fmt" | |
lua "github.com/yuin/gopher-lua" | |
) | |
func main() { | |
L := lua.NewState() | |
defer L.Close() | |
// 加载fib.lua | |
if err := L.DoFile("fib.lua"); err != nil { | |
panic(err) | |
} | |
// 调用fib(n) | |
err := L.CallByParam(lua.P{ | |
Fn: L.GetGlobal("fib"), // 获取fib函数引用 | |
NRet: 1, // 指定返回值数量 | |
Protect: true, // 如果出现异常,是panic还是返回err | |
}, lua.LNumber(10)) // 传递输入参数n=10 | |
if err != nil { | |
panic(err) | |
} | |
// 获取返回结果 | |
ret := L.Get(-1) | |
// 从堆栈中扔掉返回结果 | |
L.Pop() | |
// 打印结果 | |
res, ok := ret.(lua.LNumber) | |
if ok { | |
fmt.Println(int(res)) | |
} else { | |
fmt.Println("unexpected result") | |
} | |
} |
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function fib(n) | |
if n < 2 then | |
return 1 | |
end | |
return fib(n-1) + fib(n-2) | |
end |
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