传递指针参数问题

[tomew]

unsigned char b[5] = {0x35,0x17,0x21,0x90,0x81};
unsigned char time[2] ={0x32,0x30};
FormatOneCmd(b,0x70,2,time);
bool FormatOneCmd(const unsigned char* CarId,const unsigned char Type ,const unsigned char Length ,
const unsigned char* Content)
{

if (Content)
{
int ContentLength=strlen((char*)Content);

if ( ContentLength != Length || Length>255 || ContentLength >255 )
return false ;
}
else
{
if (Length!=0)
return false ;
}
}
为什么我传过来之后,ContentLength != Length

[野男孩]

strlen((char*)Content)是要从Content[0]开始计数，一直到Content[x]==0为止。

你的Content其实是time[2] = {0x32, 0x30},后面没有0结束，所以strlen会继续看time[2],time[3],time[4]...

明白没？time[2] = {0x32, 0x30}改成time[3] = {0x32, 0x30, 0}

[ttkk_2007]

因为time数组不是以'\0'结尾的