通过Lua彻底明白了回调函数

local m = {}

local list = {name="hello",age=12}
m.call_back_fun_print = function(printID)
    print(printID .. "-->" .. list[printID])
end

m.add_list = function(key,value,call_back_fun)
    key = tostring(key)
    list[key] = value
    call_back_fun(key)
end
m.add_list("address","beijing",m.call_back_fun_print) --address-->beijing

return m

#include <stdlib.h>
#include <iostream>
using namespace std;
typedef void(*Fun)(int,int,int); //定义函数指针类型 

void call_back_fun_print(int a,int b,int min)
{
    cout<<"compare "<<a<<" and " <<b<<" ,min= "<<min<<endl;
}
void min(int a,int b,Fun call_back_fun)  
{  
    int minvalue=a<b?a:b;
    call_back_fun(a,b,minvalue);
} 

int main()
{
    min(12,14,call_back_fun_print);//-->compare 12 and 14 ,min= 12
    return 0;
}

回调函数的优缺点及经典应用