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有以下程序: include main( ) { FILE *fp; int i=20,j=50,k,n; fp=fopen("d1.da

有以下程序: #include<stdi0.h> main( ) { FILE *fp; int i=20,j=50,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: include main( ) { FILE *fp; int i=20,j=50,k,n; fp=fopen("d1.da 有以下程序: #include<stdi0.h> main( ) { FILE *fp; int i=20,j=50,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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