c++字符串转十六进制
时间: 2023-09-25 14:09:28 浏览: 93
详解C++中十六进制字符串转数字(数值)
要将C字符串转换为十六进制,可以通过以下步骤进行操作:
1. 首先,需要将每个字符的ASCII码转换为十六进制。这可以通过获取字符的ASCII码,并将其转换为十六进制的方式来实现。
2. 然后,将每个字符的十六进制表示连接起来,以形成最终的十六进制字符串。
下面是一个示例代码,它演示了如何将C字符串转换为十六进制:
```cpp
#include <iostream>
#include <string>
std::string convertToHex(const std::string& str) {
std::string hexString;
static const char* hexDigits = "0123456789ABCDEF";
for (char c : str) {
int asciiValue = static_cast<int>(c);
int highNibble = (asciiValue >> 4) & 0xF; // 获取高四位
int lowNibble = asciiValue & 0xF; // 获取低四位
hexString.push_back(hexDigits<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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