不知道如何delete希望哪位高手指教！～

[jggsss]

struct table
{
long type;
char* data;
table* next;
};
void main(void)
{
table* bbb;
bbb=new table;
bbb->data=new char[4];
bbb->data="432";
........................
请问到最后如何delete bbb->data,和bbb

}

[xiaohedou]

是啊

[闻缺陷则喜何志丹]

delete[] bbb->data
delete bbb

[闻缺陷则喜何志丹]

struct table
{
long type;
CString data;
table* next;
};
用CString不是更好吗?

[akiko]

delete[] bbb->data;
delete bbb;

[nomenn]

用CString,那要怎么才能够排序?

[bluebohe]

你既然用delete的话，必定是C++了，C++更好的方式是用类来实现；这也是delete比free()函数的优势所在

你最好把你的结构做成一个类，在类的析构函数中delete数据成员，这样的话你在主程序中使用 delete bbb；系统会自动调用析构函数，析构函数自动析构链表的下一级，这样子的话，delete就非常简单了

[bluebohe]

class table
{
table(){data=NULL;next=NULL};
~tabke(){if(data!=NULL){delete []data;data=NULL;}if(next!=NULL){delete next;next=NULL;}}
long type;
char* data;
table* next;
};
main()
{
table* bbb;
bbb=new table;
bbb->data=new char[4];
strcpy(bbb->data,"234");
………………………………
delete bbb;
}

bbb->data="432";
这种赋值是不对的！

[闻缺陷则喜何志丹]

用CString,那要怎么才能够排序?
===================================

int Compare( LPCTSTR lpsz ) const;

Return Value

Zero if the strings are identical, < 0 if this CString object is less than lpsz, or > 0 if this CString object is greater than lpsz.

Parameters

lpsz

The other string used for comparison.

[闻缺陷则喜何志丹]

String str1 = "33",str2="22";
if(str1.Compare(str2) > 0)
{
CString t;
t = str1;
str1 = str2;
str2 = t;
}

[akun]

delete []bbb->data;
delete bbb;

[bcpl]

right

[zqone]

bbb->data=new char[4];
bbb->data="432";

这样用不对，应该是
bbb->data=new char[4];
strcpy(bbb->data,"432");

否则delete时可能会有问题。

[ruihuahan]

up

[luogucai]

你的这种情况,将导致内存泄漏,也会死机.
bbb->data=new char[4];分配的内存使用delete[] bbb->data, 但是后来你又
bbb->data="432";它指向常量字符串,不能用delete删除.

[思危]

delete[] bbb->data;
delete bbb;