qfedu-basic-level/day4/d2.cpp

#include <bitset> // 用于使用bitset
#include <iostream>

using namespace std;

int main()
{
    cout << "12 = " << 12 << endl;                      // 结果: 12
    cout << "ob01001 = " << bitset<5>(0b01001) << endl; // 结果: 9, bitset<8>用于2进制形式输出
    cout << "062 = " << 062 << endl;                    // 结果: 50
    cout << "062 = " << oct << 062 << endl;             // 结果: 50, oct 用于8进制形式输出
    cout << "0x4f = " << hex << 0x4f << endl;           // 结果: 79，hex 用于16进制形式输出
}