printf()转义序列和转换字符

#include <stdio.h>
int main()
{

    printf(Quantity\tCost\tTotal\n);

    printf(%d\t\t$%.2f\t$%.2f\n, 3, 9.99, 29.97);

    printf(\b\b\b\b can be fixed with the );

    printf(\\%c Escape character\n, 'b');

    printf(\n\a\n\a\n\a\n\aSkip a few lines, and beep );

    printf(a few beeps.\n\n\n);

    printf(%s %c., You are kicking butt learning, 'C');

    printf(%d.\n, 4);

    printf(%.1f%c of the book.\n, 12.500, '%');

    printf(\n\nOne third equals %.2f or , 0.333333);

    printf(%.3f or %.4f or , 0.333333, 0.333333);

    printf(%.5f or %.6f\n\n\n, 0.333333, 0.3333333);
    return 0;
}