以下程序的输出结果是 #include"stdio.h" sub1(chara,charb){charc;c=a;a=b;b=c;} sub2(char*a,charb){charc;c=*a;*a=b;b=c;} sub3(char*a,char*b){charc;c=*a;*a=*b;*b=c;} main() {chara,b; a='A';b='B';sub3(&a,&b);putchar(a);putchar(b); a='A';b='B';sub2(&a,b);putchar(a);putchar(b); a='A';b='B';sub1(a,b);putchar(a);putchar(b); }

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2021-04-14

以下程序的输出结果是 #include"stdio.h" sub1(chara,charb){charc;c=a;a=b;b=c;} sub2(chara,charb){charc;c=a;a=b;b=c;} sub3(chara,charb){charc;c=a;a=b;*b=c;} main() {chara,b; a='A';b='B';sub3(&a,&b);putchar(a);putchar(b); a='A';b='B';sub2(&a,b);putchar(a);putchar(b); a='A';b='B';sub1(a,b);putchar(a);putchar(b); }

以下程序的输出结果是
#include"stdio.h"
sub1(chara,charb){charc;c=a;a=b;b=c;}
sub2(char*a,charb){charc;c=*a;*a=b;b=c;}
sub3(char*a,char*b){charc;c=*a;*a=*b;*b=c;}
main()
{chara,b;
a='A';b='B';sub3(&a,&b);putchar(a);putchar(b);
a='A';b='B';sub2(&a,b);putchar(a);putchar(b);
a='A';b='B';sub1(a,b);putchar(a);putchar(b);
}

答案：

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