下列程序的运行结果是【 】。 include<iostream. h> include<string. h> void main() { char * a[5]={'stuent','worker','teacher','soldier',' peasant'}; char * p1, * p2; p1=p2=a[0] for(int i=0;i<5;i++) { if(strcmp(a[i],p1)>0) p1=a[i]; if(strcmp(a[i],p2)<0) p2=a[i]; } cout<<p1<<','<<p2<<endl; }