sprintf不明确
时间: 2023-09-09 22:09:25 浏览: 46
sprintf是一个C语言中的函数,用于将格式化的字符串输出到指定的缓冲区中。它的原型是int sprintf(char *buffer, char const *format, …)。 = "man-";
char string2 = "girl-";
char string3 = "boy";
snprintf(string1, sizeof(string1), "%s%s%s", string1, string2, string3);
printf("string1=%s\n", string1);
char string4 = "man-";
char string5 = "girl-";
char string6 = "boy";
sprintf(string4, "%s%s%s", string4, string5, string6);
printf("string4=%s\n", string4);
return 0;
}
```
其中,snprintf函数用于确保字符串不会超过指定的长度,避免缓冲区溢出。而sprintf函数则没有长度限制,可能导致缓冲区溢出。在上面的示例中,我们可以看到使用snprintf的结果是正确的,而使用sprintf的结果可能会导致缓冲区溢出。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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