english
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english/basic_content/func_pointer/func1
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BIN
english/basic_content/func_pointer/func1
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english/basic_content/func_pointer/func_pointer.cpp
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33
english/basic_content/func_pointer/func_pointer.cpp
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/**
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* @file func_pointer.cpp
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* @brief 函数指针的使用!
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* @author 光城
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* @version v1
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* @date 2019-07-20
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*/
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#include<iostream>
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using namespace std;
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/**
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* @brief 定义了一个变量pFun,这个变量是个指针,指向返回值和参数都是空的函数的指针!
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*/
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void (*pFun)(int);
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/**
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* @brief 代表一种新类型,不是变量!所以与上述的pFun不一样!
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*/
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typedef void (*func)(void);
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void myfunc(void)
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{
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cout<<"asda"<<endl;
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}
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void glFun(int a){ cout<<a<<endl;}
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int main(){
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func pfun = myfunc;/*赋值*/
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pfun();/*调用*/
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pFun = glFun;
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(*pFun)(2);
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}
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