Question

各位大虾求救啊，小弟初学C++，编译时报错error C2039: 'clock_t' : is not a member of 'std'

class stopwatch
{
public:
//stopwatch() : start(clock()){} //start counting time
stopwatch() : start(std::clock()){} //start counting time
~stopwatch();
double get_time()
{
clock_t total = clock()-start;;
return double(total)/CLOCKS_PER_SEC;
};
private:
std::clock_t start; 就是这里错了！！！！！！！！
//clock_t start;
};
stopwatch::~stopwatch()
{
clock_t total = clock()-start; //get elapsed time
cout<<"Time(secs): "<<double(total)/CLOCKS_PER_SEC<<endl;
}

Answer 1

去掉std：：试试

追问

去掉以后
stopwatch() : start(std::clock()){} //start counting time这里报错

追答

我编译一下试试 等等 你报的错误 发出来看看