在字符串中搜索十六进制子字符串

字符串的良好文档在这里:
http://www.sgi.com/tech/stl/basic_string.html

#include <iostream>
#include <string>


int main()
{
    std::cout << (int)'a' << "\n";
    std::string             x("ABCDEFGHIJKLMNOPabcdefghijklmnop");
    std::string::size_type  f   = x.find("\x61\x62");   // ab


    std::cout << x.substr(f);

    // As pointed out by Steve below.
    //
    // The string for find is a C-String and thus putting a \0x00 in the middle
    // May cause problems. To get around this you need to use a C++ std::string
    // as the value to find (as these can contain the null character.
    // But you run into the problem of constructing a std::string with a null
    //
    // std::string  find("\0x61\0x00\0x62"); // FAIL the string is treated like a C-String when constructing find.
    // std::string  find("\0x61\0x00\0x62",3); // GOOD. Treated like an array.

    std::string::size_type f2 = x.find(std::string("\0x61\0x00\0x62",3));
}

c++String对象中有很多find选项,比如

在字符串中查找内容(公共成员函数)

查找字符串中最后一次出现的内容(公共成员函数)

find_first_of

find_last_of 从字符串末尾查找字符(公共成员函数)

find_first_not_of

find_last_not_of

http://www.cplusplus.com/reference/string/string/

也许你可以试试 strstr() strtok 获取分隔符之间的值并自己解码。

char find[] = {0x02, 0x04, 0x04, 0x00};
int pos = strstr(inputStr, find);

记住, 0x00 为null,即字符串末尾。因此,如果您的源代码或搜索包含它们,您将找不到您要查找的内容,因为 strstr