19 lines
433 B
C
19 lines
433 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int main()
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{
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char *p = (char *)malloc(32);
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p = (char *)realloc(p, 48);
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if (NULL == p)
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{
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perror("malloc");
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return 1;
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}
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// strncpy 用于将特定长度的字符串拷贝到指定的内存空间中
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strncpy(p, "disen,jack,lucy", 10); // 将 disen 的前 3 个字符拷贝到 p 中
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printf("%s\n", p);
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free(p);
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return 0;
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}
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