C Tutorial/printf scanf/printf sign character
Версия от 14:21, 25 мая 2010; (обсуждение)
Содержание
" ": Indicates a space for positive values so that positive values and negative values are aligned
#include <stdio.h>
main()
{
printf("% d\n", 25);
printf("% d", -25);
}25
-25
+ Indicates that i number is printed using a sign character (+ or -).
#include <stdio.h>
main()
{
printf("%+d\n", -25);
printf("%+d\n", 25);
}-25
+25
Printing a space before signed values not preceded by + or -
#include <stdio.h>
int main()
{
printf( "% d\n% d\n", 547, -547 );
return 0;
}547 -547
Printing numbers with and without the + flag
#include <stdio.h>
int main()
{
printf( "%d\n%d\n", 786, -786 );
printf( "%+d\n%+d\n", 786, -786 );
return 0;
}786 -786 +786 -786
