可以具体点不？不是很明白啊～

Question

int main()
{
complex< double> m=(5,1);
cout <<m;
return 0;
} 

我输出的值为什么就只是 <1,0>
对了， 还有就是 pair 类型的输出，
比如， 如何一起输出这两个值
pair< string, string > author( "James", "Joyce" );

Answer 1

因为你多写了一个 “=”，去掉就对了。&nbsp;输出pair只能重载<<操作符。

Answer 2

complex<double>The explicitly specialized template class describes an object that stores an ordered pair of objects both of type double, first representing the real part of a complex number and the second representing the imaginary part.第一个改下：complex< double> m(5,1.02);cout <<m.imag()<<endl;cout <<m.real();pair< string, string > author( "James", "Joyce" );cout<<author.first<<endl;cout<<author.second<<endl;