QByteArray转换为整数 [英] QByteArray to integer

问题描述

您可能已经从标题中弄清楚了，我在将QByteArray转换为整数时遇到问题.

As you may have figured out from the title, I'm having problems converting a QByteArray to an integer.

 QByteArray buffer = server->read(8192);
 QByteArray q_size = buffer.mid(0, 2);
 int size = q_size.toInt();

但是，size为0.buffer没有收到任何ASCII字符，并且我相信toInt()函数如果不是ASCII字符将无法工作. int size应该是37(0x25)，但是-正如我所说的-它是0.

However, size is 0. The buffer doesn't receive any ASCII character and I believe the toInt() function won't work if it's not an ASCII character. The int size should be 37 (0x25), but - as I have said - it's 0.

q_size是0x2500(或其他字节顺序-0x0025).

The q_size is 0x2500 (or the other endianness order - 0x0025).

这是什么问题?我很确定q_size拥有我需要的数据.

What's the problem here ? I'm pretty sure q_size holds the data I need.

推荐答案

我自己还没有尝试过看看它是否有效，但是从Qt文档中看起来像您想要一个QDataStream.这支持提取所有基本的C ++类型，并且可以使用QByteArray作为输入来创建.

I haven't tried this myself to see if it works but it looks from the Qt docs like you want a QDataStream. This supports extracting all the basic C++ types and can be created wth a QByteArray as input.

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