// Eg12-5.cpp
#include <iomanip>
#include <iostream>
using namespace std;
int main() {
  char c[30] = "this is string";
  double d = -1234.8976;
  cout << setw(30) << left << setfill('*') << c << "----L1" << endl;
  cout << setw(30) << right << setfill('*') << c << "----L2" << endl;
  // showbase显示数值的基数前缀
  cout << dec << showbase << showpoint << setw(30) << d << "----L3"
       << "\n";
  // showpoint显示小数点
  cout << setw(30) << showpoint << setprecision(10) << d << "----L4"
       << "\n";
  // setbase(8)设置八进制
  cout << setw(30) << setbase(16) << 100 << "----L5"
       << "\n";
  
}