main() { int a【】={1,2,3,4,5,6,7,8,9,0},*p; p=a; printf("%d\n",p); printf("%d\n",p+9); }结果是2 4 我想知道是怎么得来的

main() { int a; for(a=1;a void main() {int t=1;fun(fun(t));} fun(int h) {stvoid main(){int t=1;fun(fun(t));}fun(int h){static int a[3]={1,2,3}; int k; for(k=0;k error C2065:'a' :undeclared identifier#includeint main(){int print_shang();int print_xia();print_shang();print_xia();return 0;}int print_shang(){int a,b;for(a=1;a main(){ int i=1;while (i int f() { static int i=0; int s=1; s+=i; i++; return s; }main() { int i,a=0; for(i=0;i main() {int t=1;fun(fun(t));} fun(int h){static int a[3]={1,2,3};int k; for(k=0;k c++求2+22+222+2222+22222.#includevoid main(){int sum=0;int a=2;int n;coutn;for(int i=1;i #include int b=2; int fun(int *k) {b=*k+b;return(b);} main() {int a[10]={1,2,3,4,5,6,7,8}, main() {int a,b; for (a=1,b=1;a main() { int a,b,c; a=1;b=2;c=3; if(a .main() { int a=1,b=10; do {b-=a;a++;}while(b-- #include void main() { int a,b,c; for(a=1; a main() {int m[10],a;for(a=0,a int fm(int a,int b) {if(b==1)return a; else return a+fm(a,b-1); } main( ) { printf(%d ,fm(4,3)) int fm(int a,int b) {if(b==1)return a; else return a+fm(a,b-1); } main( ) { printf(%d ,fm(4,3) 为什么得这个结果?#includeusing namespace std;int main(){int a=4;int b=++a+1+(++a+1);cout void fun(int p) { int d=2; p=d++; printf(%d,p); } main() { int a=1; fun(a); printf(%d ,a); } #include main() {int a=-1,b=1,k; if((++a