题目内容
对于以下程序,说法正确的是___________。#includemain(){FILE*fp;fp=fopen("quiz.txt","w");if(fp!=NULL){fprintf(fp,"%s\n","success!");fclose(fp);printf("ok!");}}
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以下程序运行后,文件test.txt的内容是_______。#includemain(){FILE*fp;charstr[][10]={"first","second"};fp=fopen("test.txt","w");if(fp!=NULL)fprintf(fp,"%s",str[0]);fclose(fp);fp=fopen("test.txt","w");if(fp!=NULL)fprintf(fp,"%s",str[1]);fclose(fp);}
若在fopen函数中使用文件的方式是"a+",该方式的含义是________。
设有如下语句:struct stu{int num;int age;};struct stu s[3]={{101,18},{102,21},{103,19}};struct stu *p=s;则下面表达式的值为102的是_______。
若有下面定义,能打印出字母'L'的语句是_________。struct class{ char name[8];int age;};struct class s[12]={"Zheng",16,"Lin",18,"Yang",19,"Guo",20};
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