以下各项用于定义结构体类型，并定义结构体变量，正确的是（）. A: structstudent{charnum[5];intscore;};studentstu1,stu2; B: structstudentstu1,stu2;structstudent{charnum[5];intscore;}; C: structstudent{charnum[5];intscore=96;};structstudentstu1,stu2; D: structstudent{charnum[5];intscore;};structstudentstu1,stu2;

有以下程序structSTU{charnum[10];floatscore[3]...,sum);}程序运行后的输出结果是（）

在visualc++6.0编译环境下，设有以下结构类型说明和变量定义，则变量a在内存所占字节数是structstud{charnum[6];ints[4];doubleave;}a;

若能使程序运行后的输出结果如下： 201501 则空白处填写的表达式或语句应该是 #include structstudent { intage; charnum[8]; }; intmain() { structstudentstu[3]={{20,"201501"},{21,"201502"},{19,"201503"}}; structstudent*p=stu; ____________________ return0; }