问题
I'm trying to align my output but for some reason I can't get it to how I want it, and it's really frustrating. The title won't align right. I don't know if I'm using setw() properly.
#include <iostream>
using std::cout;
using std::endl;
#include <string>
using std::string;
#include <assert.h>
#include <iomanip>
using std::setw;
using std::right;
using std::left;
//Movie Struct to hold movie data
struct MOVIES
{
string Title; //Name of movie
int CriticRating; //Critic rating 1-100
int AudRating; //Audiences' rating 1-100
};
MOVIES Movies[10] = { { "The Wizard of Oz", 99 , 70 },
{ "The Third Man" , 78, 45 },
{ "Citizen Kane" , 86, 85 },
{ "Charlie Chaplin in Modern Times", 56, 95 },
{ "All About Eve" , 78, 94 },
{ "The Cabinet of Dr. Caligari" , 76, 90 },
{ "The God Father" , 99 , 98 },
{ "E.T. The Extra-Terrestrial" , 98 , 71 },
{ "The Beatles: A Hard Day's Night", 87 , 90 },
{ "Monty Python and the Holy Grail", 100, 100 }
};
void PrintMovies(MOVIES* movies, int numMovies)
{
cout << "Movies" << endl
<< "Critic" << setw(10)
<< "Audience" << setw(10)
<< "Title" << endl;
for (int i = 0; i < numMovies; i++)
{
cout << setw(6);
cout << movies[i].CriticRating << right;
cout << setw(6);
cout << movies[i].AudRating << right;
cout << setw(6);
cout << movies[i].Title << left;
cout << endl;
};
}
int main()
{
PrintMovies(Movies, 10);
return 0;
}
//Sample Output of what I need
However this is what I'm getting instead
回答1:
If this is what you want
#include <iomanip>
using std::setw;
using std::right;
using std::left;
//Movie Struct to hold movie data
struct MOVIES
{
string Title; //Name of movie
int CriticRating; //Critic rating 1-100
int AudRating; //Audiences' rating 1-100
};
MOVIES Movies[10] = { { "The Wizard of Oz", 99, 70 },
{ "The Third Man", 78, 45 },
{ "Citizen Kane", 86, 85 },
{ "Charlie Chaplin in Modern Times", 56, 95 },
{ "All About Eve", 78, 94 },
{ "The Cabinet of Dr. Caligari", 76, 90 },
{ "The God Father", 99, 98 },
{ "E.T. The Extra-Terrestrial", 98, 71 },
{ "The Beatles: A Hard Day's Night", 87, 90 },
{ "Monty Python and the Holy Grail", 100, 100 }
};
void PrintMovies(MOVIES* movies, int numMovies)
{
cout << " Critic " << setw(6) << " Audience " << setw(0) << " Title " << endl;
for (int i = 0; i < numMovies; i++)
{
cout << setw(7) << right << movies[i].CriticRating << setw(10) << right << movies[i].AudRating <<" "<< setw(30) << left << movies[i].Title << endl;
}
}
int main()
{
PrintMovies(Movies, 10);
return 0;
}
回答2:
As said in the comments if you want to use std::setw()
to set the width, you will have to use it before entering your "value".
For example,
std::cout << "no setw: " << 42 << std::endl;
std::cout << "setw(10): " << std::setw(10) << 42 << std::endl;
Also you will have to set the width between each operator<<
.
If you do:
std::cout << std::setw(10) << 42 << "bar" << std::endl;
std:: cout << std::setw(10) << 42 << std::setw(10) << "bar" << std::endl;
you will respectively get the outputs :
________42bar
________42_______bar
来源:https://stackoverflow.com/questions/35424332/c-iomanip-alignment