有以下程序段,以下叙述中正确的是 typedef struct node {int data; struct node *next;} *NODE;NODE p;
A. p是指向struct node结构变量的指针的指针
B. NODE p;语句出错
C. p是指向struct node结构变量的指针
D. p是struct node结构变量
有以下程序#includemain(){FILE *fp;int k,n,a[6]={1,2,3,4,5,6};fp=fopen("d2.dat","w");fprintf(fp,"%d%d%d\n",a[0],a[1],a[2]);fprintf(fp,"%d%d%d\n",a[3],a[4],a[5]);fclose(fp);fp=fopen("d2.dat","r");fscanf(fp,"%d%d",&k,&n);printf("%d%d\n",k,n);fclose(fp);}程序运行后的输出结果是
A. 1 2
B. 1 4
C. 1234
D. 123456
有以下程序,程序运行后,文件t1.dat 中的内容是 #include void WriteStr(char *fn,char *str){ FILE *fp;fp=fopen(fn,"w"); fputs(str,fp); fclose(fp);}int main( ){ WriteStr("t1.dat","start");WriteStr("t1.dat","end"); return 0;}
A. start
B. end
C. startend
D. endrt