如何在用C命令行参数空字符传递？ [英] How to pass in a null character in a command line argument in C?

问题描述

我还是想知道如何在一个空字符传递作为命令行参数，也许让一个字符串可以传递作为形式参数：

I would still like to know how to pass in a null character as a command line argument, maybe so that a single string can be passed in as an argument in the form:

到\\ 0BE \\ 0or \\ 0not \\ 0℃至\\ 0BE \\ 0

"to\0be\0or\0not\0to\0be\0"

，然后解析它。
然而该计划将处理这个字符串：

And then parse it. However the program would treat this string as:

到\\\\ \\\\ 0BE \\\\ 0or \\\\ 0not \\\\ 0℃至\\\\ 0BE 0

"to\\0be\\0or\\0not\\0to\\0be\\0"

我如何解决此问题？有什么办法？

How can I work around this? Is there any way?

推荐答案

您不能。

C程序接收参数作为零结尾的字符串。这样的字符串不能包含空字符，顾名思义。

The C program receives arguments as zero-terminated strings. Such a string cannot contain a null character, by definition.

如果你想传递一个空字符，则必须有所EN code将其与一些语法和C程序必须然后去code将其通过跨preting这种语法。

If you want to pass a null character, then you must somewhat encode it with some syntax, and your C program must then decode it by interpreting that syntax.

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