Question

vs2008中 cout.setf(ios::dec)的问题拜托各位了 3Q

#include <iostream> #include <iomanip> using namespace std; void main() { int n=100; cout.setf(ios::dec); cout<<"十进制"<<n<<endl; cout.setf(ios::oct); cout<<"八进制"<<n<<endl; cout.setf(ios::hex); cout<<"十六进制"<<n<<endl; getchar(); } 预想结果应该是 100 144 64 但是结果却是 100 100 100 为什么?

Answer 1

#include <iostream> #include <iomanip> using namespace std; void main() { int n=100; cout.setf(ios::dec); cout<<"十进制"<<n<<endl; cout.setf(ios::oct, ios::dec); cout<<"八进制"<<n<<endl; cout.setf(ios::hex, ios::oct); cout<<"十六进制"<<n<<endl; getchar(); }

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