問題詳情

40)有以下程序#include main(){ FILE *fp; int i=20,j=30,k,n;fp=fopen("d1.dat","w");fprintf(fp,"%dn",i);fprintf(fp,"%dn",j);fclose(fp);fp=fopen("d1.dat","r");fscanf(fp,"%d%d",&k,&n); printf("%d %dn",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

參考答案

答案:A
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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