C/C++ 字符串入门

灰太狼 2023-02-19 08:23 17阅读 0赞

[C++ String类相关函数及cin()、getline()、gets()、getchar()函数.][C_ String_cin_getline_gets_getchar_.]  
[视频讲解][Link 1]

## 基本知识 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70]

#include<iostream>
    using namespace std;
    int main(){ 
    	char a[10] = { 'h','e','l','l','o'};
    	char b[10] = "hello";//只能在初始化的时候这样赋值 
    	return 0;
    }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][20200619172759303.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70 3]  
字典序比较，先比较第一个,如果相同继续往下比较，如果不同返回结果。（排序）  
例：“b”>“abc” , “cbe”>“abe”

## 例题： ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70 4]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIxNDgwNjA3_size_16_color_FFFFFF_t_70 7]

[C_ String_cin_getline_gets_getchar_.]: https://blog.csdn.net/qq_21480607/article/details/105339685
[Link 1]: https://www.bilibili.com/video/BV1KE411473B
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[20200619172759303.png]: https://img-blog.csdnimg.cn/20200619172759303.png
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