新手提问，麻烦看下我程序的问题出在那？

[ysysbaobei]

功能：实现比较2个数组是相等的功能

#include <iostream>
#include <vector>
using namespace std;
int main()
{
	int a[] = {1,2,3,4,5,6,7,8,9};
	int b[] = {0,1,2,3,4,5,6,7,8};
	if (sizeof(a) != sizeof(b))
		cout << "a[] is not equal to b[]" << endl;
	else
	{
		int m = sizeof(a)/4;
		cout << m << endl;
		int flag = 1;
		int n = 1;
		for (int ix = 0; ix != 9, flag = 1; ++ix)
		{
			cout << "run" << endl; // 测试语句
			if (a[ix] == b[ix])
				flag = 1;
			else 
				flag = 0;
		}
		if (ix == m)
			cout << "a[] is equal to b[]" << endl;
	}

	return 0;
}

在vc6.0里运行时，输出很多run,然后提示应用程序错误，内存不能为读

[P_ghost]

我晕，无限循环哦

[ysysbaobei]

#include <iostream>
#include <vector>
using namespace std;
int main()
{
	int a[] = {1,2,3,4,5,6,7,8,9};
	int b[] = {0,1,2,3,4,5,6,7,8};
	if (sizeof(a) != sizeof(b))
		cout << "a[] is not equal to b[]" << endl;
	else
	{
		cout << sizeof(a) << "," << sizeof(b) << endl;
		int flag = 1;
		int n = 1;
		for (size_t ix = 0; ix != sizeof(a)/4 && flag == 1; ++ix)
		{
			if (a[ix] == b[ix])
				flag = 1;
			else 
				flag = 0;
		}
		if (ix == sizeof(a)/4)
			cout << "a[] is equal to b[]" << endl;
		else
			cout << "a[] is not equal to b[]" << endl;
	}

	return 0;
}

问题解决了，谢谢大家

[ChamPagneZ]

ix != 9, flag = 1 ;//逗号表达式,恒成立

[ChamPagneZ]

flag == 1

[feng4206yu]

ix != 9, flag = 1
两个地方的错误....逗号和等号.....
ix != 9,flag == 1;

[帅得不敢出门]

for (int ix = 0; ix != 9, flag = 1; ++ix) //这个flag在此何义? 如果是初始化放到前面,如果是每次flag=1
可以放在循环中 flag =1; 如果是判断是 则 &&flag ==1

[feng4206yu]

[Quote=引用 3 楼 feng4206yu 的回复:]
ix != 9, flag = 1
两个地方的错误....逗号和等号.....
ix != 9,flag == 1;
[/Quote]
日，我晕了
ix != 9&&flag == 1;

[feng4206yu]

[Quote=引用 5 楼 feng4206yu 的回复:]
引用 3 楼 feng4206yu 的回复:
ix != 9, flag = 1
两个地方的错误....逗号和等号.....
ix != 9,flag == 1;

日，我晕了
ix != 9&&flag == 1;
[/Quote]

同时这里的9也算是不好的编程习惯吧,最好还是使用sizeof(a)或者sizeof(b)，毕竟你前面已经对他们的大小进行比较了....