left operand must be l-value(在线等待)#includevoid main(){struct student{long int num;char name[30];char sex;char addr[30];}a;a.num=2;a.name="Li shuai";a.sex='F';a.addr="123 qinghe Road";printf("No.%ld\nname:%s\nsex:%c\naddress:% s\n",a.num,a.nam