为什么我在mov [edx]，al？(Why do i get access violation at mov [edx], al?)

 我在Visual Studio中编写此代码，但我不知道为什么它会在mov [edx]上获得访问冲突。 任何人都可以帮我解释一下吗？ 
 
int main()
{
    char z[10] = "banana";
    _asm
    {
        lea     ecx, z;
        mov     edx, [ecx];
        inc     edx;
        mov     [ecx], edx;
        dec     edx;
        mov     al, 31;
        mov     [edx], al;
        mov     eax, 31;
        and     eax, 0FFh
    }
}

I write this code in Visual Studio, but i don't know why it get access violation at mov [edx], al. Can anyone help me to explain it?
 
int main()
{
    char z[10] = "banana";
    _asm
    {
        lea     ecx, z;
        mov     edx, [ecx];
        inc     edx;
        mov     [ecx], edx;
        dec     edx;
        mov     al, 31;
        mov     [edx], al;
        mov     eax, 31;
        and     eax, 0FFh
    }
}

原文：https://stackoverflow.com/questions/27200770