如何将一个十六进制字符串转换为ascii，包括空值 [英] how to convert a string of hex chars to ascii, including nulls

问题描述

我想将一串十六进制字符（2个十六进制字符= 1个字节）转换为ASCII。十六进制字符也包括零（0x00），我想包含在ASCII字符串中。


十六进制字符串：5000005355 ....

ASCII：P< ; null>< null> SU ...


我可以做到这一点，字符串长度也包括空值但是当我连接其他字符串时，它不会显示为其部分。

I want to convert a string of hex characters (2 hex chars = 1 byte), to ASCII. Hex chars include zeros (0x00) as well, which I want to include in ASCII string.

hex string: 5000005355....
ASCII: P<null><null>SU...

I can do it and the string length also includes nulls but when I concatenate other string, it doesn''t show as its part.

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推荐答案

在连接后放入一个断点检查变量的实际值。如果它完整但显示错误我不会感到惊讶。字符串通常不能很好地处理它们中的空值。空终止是相当标准的，所以当控件达到null时，它可能会停止查找。

Put a breakpoint in after the concatenate and check the actual value of your variable. I wouldn''t be surprises if it was complete but displaying wrong. Strings often don''t deal well with having nulls in them. Null termination is fairly standard so when a control reaches the null it may just stop looking.

如果要在套接字上发送它，为什么要将它转换为字符串？

Why would you convert it to a string if you were going to send it on a socket?

@tlhintoq


在工具提示中，它显示带有空值的字符串和hello ;最后，但是在快速观看窗口中，它只显示第一个''\ 0''之前的字符，而没有你好...

@tlhintoq
In the tooltip, it shows the string with nulls and "hello" at the end, but in ''quick watch'' window, it shows only characters before first ''\0'' and no "hello"...

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