printf("年龄:%d 分数:%.2f 性别:%c\n", a.age, a.score, a.sex ); return 0; 2、不环保的方式 #include <stdio.h> struct student /*声明时直接定义*/ { int age; /*年龄*/ float score; /*分数*/ char sex; /*性别*/ /*这种方式不环保,只能用一次*/ } a={21,80,'n'}; int mai...
constchar*argv[]){//定义局部结构体名为Person,会屏蔽全局结构体//局部结构体作用域,从定义开始到“}”块结束struct Person{int age;};// 使用局部结构体类型struct Person pp;pp.age=50;pp.name="zbz";test();return0;}voidtest(){//使用全局的结构体定义结构体变量pstruct Person p={10,"sb...
结构体的对齐(Structure Padding)在这个例子中,我们使用#pragma pack(1)预处理指令告诉编译器以字节对齐方式为1来定义结构体。默认情况下,编译器会进行结构体成员的对齐,以优化访问速度。通过指定对齐方式为1,我们可以减少内存浪费,但可能会导致访问效率稍微降低。我们可以使用sizeof运算符来查看对齐后的结构体大小...
Return member offset This macro with functional form returns the offset value in bytes of member member in the data structure or union type type. The value returned is an unsigned integral value of type size_t with the number of bytes between the specified member and the beginning of its str...
这种方式最烂{intage;floatscore;charsex;} t={21,79,'f'};intmain{printf("年龄:%d 分数:%f 性别:%cn", t.age, t.score, t.sex);return0;}return0;}} 定义结构体变量 之前我们结构体类型的定义(结构体的声明)只是告诉编译器该如何表示数据,但是它没有让计算机为其分配空间。
return 0; } 定义结构体变量 之前我们结构体类型的定义(结构体的声明)只是告诉编译器该如何表示数据,但是它没有让计算机为其分配空间。 我们要使用结构体,那么就需要创建变量,也就是结构体变量; 创建一个结构体变量; struct book library; 看到这条指令,编译器才会创建一个结构体变量library,此时编译器才会按照book...
consistent return consistentorder consolacion consolator del mare console air condition console document copy console teminal console video games consolepanel consolidant consolidate vt make s consolidate the new-b consolidated accounts consolidated basis consolidated storage consolidated timesavi consolidated und...
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struct myStructure s1; return0; } Access Structure Members To access members of a structure, use the dot syntax (.): Example // Create a structure called myStructure struct myStructure { intmyNum; charmyLetter; }; intmain() { // Create a structure variable of myStructure calleds1 ...