In the event of the machine not operating correctly, an error code will appear.
如果机器运转不正常，就会出现错误代码。
In the code above, where would we signal an error?
在上面的代码中，我们在哪里报告错误呢？
I interjected. "Why not just return an error code?"
我插话道，“返回一个错误编码不可以吗？”
We might want to perform error checking for production code.
我们可能想要对产品代码执行错误校验。
This is usually accompanied by an error code.
这通常会伴随有一个错误代码。
Take my word for it: the 404 error code was created for a reason.
请记住我的话：弄个404错误代码出来一定是有缘由的。
Some simple code additions can make this error a lot more specific.
添加一些简单的代码可以让这个错误更加具体。
For any other exceptions, the code just dumps the error message to the screen.
对于其他异常，这段代码只是在屏幕上显示错误消息。
The JDBC driver indicates the loss of a connection with a special error code.
JDBC驱动程序用一个特殊的错误码表示连接的丢失。
This return code usually indicates some kind of error has occurred.
这个返回代码通常表明发生了某些错误。
Then the error code and failure reason are printed out.
然后输出错误代码和故障原因。
This type of masked error can easily result in shipping broken code.
这种被蒙蔽的错误很容易导致不完善代码的发布。
In addition to setting the error code, PDO will emit a traditional E_WARNING message.
除了设置错误代码以外，PDO还将发出一条传统的E_WARNING消息。
A return code of 0 indicates no error.
返回码为0就说明没有错误。
This call either returns zero on success or a non-zero error code on failure.
函数调用成功时返回零，失败时返回非零的错误代码。
It is very important that you test error conditions in your code.
测试您的代码中的错误情况非常重要。
The error code and message are returned to the caller as OUT parameters.
错误代码和消息被作为OUT参数返回给调用者。
The write op is returned back to the host with a write error code.
写操作返回到主机并返回写错误码。
The other just returns silently; no error message, no unusual exit code.
而另一种实现只是无声地返回，没有错误消息，也没有不寻常的退出代码。
Then we'll get the following error when we run the code.
那么运行此代码时我们将得到如下错误。
Since any code after the return statement is unreachable, it's marked in error.
由于return语句后面的所有代码都不能执行，因此将其标记为错误。
If the status is not good, then return the appropriate error code.
如果状态不是good，就返回错误代码。
The Exception value is an internal VMM error code.
Exception值是一个内部VMM错误代码。
The mysqli_errno function returns the error code of the most recent function call.
mysqli_errno函数返回最近的函数调用的错误码。
If an error occurs, the error code and reason is given. For example.
如若发生错误，将会给出错误代码和原因。
Your code should now be error free.
您的代码现在应该没有错误了。
Without exceptions, you had to return an error code.
如果不使用异常，则必须返回错误代码。
This is a general error code that could have several causes.
这是一个常见的错误，可能存在几个原因。
In this code, we perform the lookup and then check for an error condition.
这段代码用于执行查找并检查错误条件。
In this code, we perform the lookup and then check for an error condition.
这段代码用于执行查找并检查错误条件。
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