题目内容
以下程序运行后的输出结果是什么?#include int 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); return 0;}
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