执行如下程序从键盘输入字符串“abcdefg”,则程序输出_____________.#include
#include
#defineSIZE100voidstrchange(charstr[]){intn=strlen(str);if(n==0||n==1)return;else{inti,j;for(i=0,j=n-1;i<=n/2-1;i++,j--){chartmp;tmp=str[i];str[i]=str[j];str[j]=tmp;}}}intmain(void){charstr[SIZE];scanf("%s",str);strchange(str);printf("%s\n",str);return1;}