[{"createTime":1735734952000,"id":1,"img":"hwy_ms_500_252.jpeg","link":"https://activity.huaweicloud.com/cps.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=V1g3MDY4NTY=&utm_medium=cps&utm_campaign=201905","name":"华为云秒杀","status":9,"txt":"华为云38元秒杀","type":1,"updateTime":1735747411000,"userId":3},{"createTime":1736173885000,"id":2,"img":"txy_480_300.png","link":"https://cloud.tencent.com/act/cps/redirect?redirect=1077&cps_key=edb15096bfff75effaaa8c8bb66138bd&from=console","name":"腾讯云秒杀","status":9,"txt":"腾讯云限量秒杀","type":1,"updateTime":1736173885000,"userId":3},{"createTime":1736177492000,"id":3,"img":"aly_251_140.png","link":"https://www.aliyun.com/minisite/goods?userCode=pwp8kmv3","memo":"","name":"阿里云","status":9,"txt":"阿里云2折起","type":1,"updateTime":1736177492000,"userId":3},{"createTime":1735660800000,"id":4,"img":"vultr_560_300.png","link":"https://www.vultr.com/?ref=9603742-8H","name":"Vultr","status":9,"txt":"Vultr送$100","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":5,"img":"jdy_663_320.jpg","link":"https://3.cn/2ay1-e5t","name":"京东云","status":9,"txt":"京东云特惠专区","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":6,"img":"new_ads.png","link":"https://www.iodraw.com/ads","name":"发布广告","status":9,"txt":"发布广告","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":7,"img":"yun_910_50.png","link":"https://activity.huaweicloud.com/discount_area_v5/index.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=aXhpYW95YW5nOA===&utm_medium=cps&utm_campaign=201905","name":"底部","status":9,"txt":"高性能云服务器2折起","type":2,"updateTime":1735660800000,"userId":3}]
<> introduction
*
In a complex program ,c All the data types of language can not meet our needs , Often need to define their own data structure . There will be a problem here , When your code is not stored in a source file , And there is also the transmission of structure data between functions . So how to share the same structure in different source files ?
<> Different source files share the same structure
*
first , We may consider defining the same structure in different source files , however , Although the data types of structures are the same , The name is the same , But in the compiler compilation process , It's not the same data type , And report a mistake （ The data type you passed in does not match what you need ）.
* Whether it's an integrated environment or gcc Compiler, his method is the same .
* First define a header file // Header file str.h #ifndef _STR_H_ //ifndef namely if no define The abbreviation is
// If there is no definition, execute the following code , definition // There's no need to redefine it ._STR_H_ This is yours // The header file name is capitalized and underlined . #define _STR_H_
typedef struct { char *ch; int length; } Str; #endif
2. This header file is introduced into each source file
#include "str.h"
* Because there is a judgment in the header file first , You don't have to worry about multiple structs generated at compile time .