以下程序用来输出结构体变量ex所占存储单元的字节数,请填空。 #include <stdio.h> struct st { char name[20]; double score; }; void main() { struct st ex; printf(“ex size: %dn”,sizeof());
以下程序用来输出结构体变量ex所占存储单元的字节数,请填空。 #include <stdio.h> struct st { char name[20]; double score; }; void main() { struct st ex; printf(“ex size: %dn”,sizeof());
参考答案和解析
ex或struct st 求一个变量所占的存储单元数,用sizeof函数,参数为该变量名或其变量类型。
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