c - 如何获取char*的子串

Question

这个问题已经有答案了:

How to get substring in C (4 个回答)

已关闭 8 年前。

我有以下内容

char* str = "Some string";

如何从 n 获取子字符串至m str的符号？

Answer 1

如下代码:

int m = 2, n = 6;
char *p = (char *)malloc(sizeof(char) * (n - m));
for (size_t i = m; i < n; i++)
{
    p[i - m] = str[i];
}
if(p)  
    printf("Memory Allocated at: %x/n",p);  
else  
    printf("Not Enough Memory!/n");  
free(p);