fprintf C多个空格

Question

Hello i'm new to C and have some confusion Regarding fprintf

I'm trying to create a Data table and i want it to look exactly like this:

Rectangle A                    Rectangle B 
SW corner   Height   Width     SW corner   Height   Width

Most of my confusion is coming from the white spaces, surely there is a better way than just adding an empty String.

Answer 1

您可以使用宽度说明符：

printf("[%5d] [%-5d]\n", 42, 42);

Answer 2

You can give a field width with the format specifier:

printf( "%20s", str );

You can also make contents left- or right-aligned within that field, and many other things. It's really worth checking out the details of the documentation: man printf

Answer 3

printf has lots of options, is this what you had in mind?

#include <stdio.h>

main() {

    char *label1="Rectangle A";
    char *label2="Rectangle B";

    printf("%-31s%-31s\n",label1,label2);
    printf("SW corner   Height   Width     SW corner   Height   Width\n");
}