Xcode 上的 C：访问错误
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/16009667/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
C on Xcode: bad access
提问by Haoyao Chen
I am trying to finish an assignment for my Cprogramming class on Xcode. It's simple. It reads a text file, which contains a list of student IDs and their test scores. And then it calculates the overall score based on these data, and writes them to another text file. However, I keep getting this Bad Accesserror message that says:
我正在尝试完成我的C编程课的作业Xcode。这很简单。它读取一个文本文件，其中包含学生 ID 及其考试成绩的列表。然后它根据这些数据计算总分，并将它们写入另一个文本文件。但是，我不断收到此Bad Access错误消息，内容为：
Thread 1: EXC_BAD_ACCESS(code=1, address=0x7fff00000de4)
I don't know what it means. What should I do?
我不知道这是什么意思。我该怎么办？
回答by Alex
The EXC_BAD_ACCESSmeans that you tried to attempt the incorrect address in memory.
这EXC_BAD_ACCESS意味着您试图在内存中尝试错误的地址。
You should start with the following:
您应该从以下几点开始：
- Check that all pointers are initialized before using
- If you have an array, so possibly you are trying to access the element that is out of bounds
- 使用前检查所有指针是否已初始化
- 如果您有一个数组，那么您可能正在尝试访问越界的元素
And of course, use the debugger.
当然，使用调试器。
