c - 在C中分割多行字符串

Question

如何在 const char* 数组中分割多行字符串？

这是输入字符串。

const char* str = "122.123,-38.789"
                  "122.123,-39.78";

我需要从中获取两个字符串。

str1 = "122.123,-38.789";

str2 = "122.123,-39.78";

输出

printf("string='%s'", str)

string='122.123,-38.789122.123,-39.78'

应该怎样分割这个字符串？

Answer 1

使用 char * 数组

#include <stdio.h>
const char* str[] = { "122.123,-38.789" ,  "122.123,-39.78" };

int main(){
  printf("%s\n%s\n",str[0],str[1] );
  return 0;
}

---

编译器如何理解您的代码:

C 预处理器将字符串连接在一起，

const char* str = "122.123,-38.789"
                  "122.123,-39.78";

字符串之间的换行符被解析为空格，与空格或制表符视为相同。所以它相当于:

const char* str = "122.123,-38.789" "122.123,-39.78";

预处理器转换成的内容

const char* str = "122.123,-38.789122.123,-39.78";