为什么我这段代码,运行之后产生的是1字节的空文件

116205035

哈哈哈哈哈，因为strlen(s)+1==1。HOHOHOHOHOHO~
飘走~

江中的小鱼

你的意思是s里面是空的?

116205035

S开头是0表示S结束，长度就是0了，加个1，不还是1吗？嘿嘿

随缘

数组的结束标志在s[0]。。strlen（）一开始就检测到结束标志返回0值

说错了还请各位表笑[em04]

随缘

啊。。已经有人说了啊。。。没看见。。。

leesoft

strlen是检测字符串长度的，不能用于检测一般数据。
所谓字符串，是以0为结尾的一串字符。

江中的小鱼

对了我想一 个
一个LAVA超过了20K会怎么样?

116205035

死机，或者不能运行。

Eastsun

以下是引用116205035在2005-7-7 13:31:26的发言：

死机，或者不能运行。

呵呵,LAVA最大可以16M（这里指编译后的LAV文件大小）

116205035

貌似楼主的意思是内存吧，应该与主题相关的~

jason

记得机战的作者Lasly曾经说过一个比较偏门的方法，来计算数组长度：
这个方法比较偏门，而且并不是很好用
char PLANE[]={0,0,229,16,22,0};
char a;
void main()
{
printf("%d",(&a)-PLANE);
getchar();
}
就是他们的内存地址相减得到长度，注意：char a必须紧跟在后面~~~

MetalMax

两个变量紧挨着定义，它们在内存中的分配位置也一定是紧挨的
利用这一点也可行~~~
理解理解~~~

江中的小鱼

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void main()
{
    char fp;
    if ((fp=fopen("/LavaData/tmp.dat","w+"))==0)
        printf("创建文件失败!");
    else {
        printf("创建文件成功!");
        fwrite(s,1,strlen(s)+1,fp);
        fclose(fp);
    }
    getchar();
}