11-3-3.cpp

学习c++的ppt

#include <iostream.h>
#include <iomanip.h>

void main()
{  
	
	cout << hex << 100 << endl;  // 以16进制输出100
    cout << dec << 100 << endl;
    cout << oct << 100 << endl;
    cout << setw(10) << "abcdef" << endl;
    cout << "abcdef" << endl;
    cout << setw(10) << setfill('$')<< "12345" << endl;
/*
	int n;
	cout << "请输入层数：";
	cin >> n;
	for(int i = n; i > 1; i --)
		cout << setfill(' ') << setw(i) << " " << setfill('*') << setw(2*n-2*i+1) << "" << endl;
	for(i = 1; i < n+1; i ++)
		cout << setfill(' ') << setw(i) << " " << setfill('*') << setw(2*n-2*i+1) << "" << endl;
*/
}