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题目内容
(请给出正确答案)
有以下程序
#include
main( )
{ FILE *fp;int i=20,j=30,k,n;
fp=fopen("d1.dat","w");
fprintf(fp,"%d\n",i);fprintf(fp,"%d\n",j);
fclose(fp);
fp=fopen("d1.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.20 30
B.20 50
C.30 50
D.30 20
参考答案
更多 “ 有以下程序#includemain( ){ FILE *fp;int i=20,j=30,k,n;fp=fopen("d1.dat","w");fprintf(fp,"%d\n",i);fprintf(fp,"%d\n",j);fclose(fp);fp=fopen("d1.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.20 30B.20 50C.30 50D.30 20 ” 相关考题
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