c++字符串转16进制
时间: 2023-08-31 14:09:04 浏览: 117
你可以使用以下方法将C字符串转换为16进制:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void stringToHex(const char* input, char* output) {
char hex[] = "0123456789ABCDEF";
size_t len = strlen(input);
for (size_t i = 0; i < len; i++) {
unsigned char c = input[i];
output[i * 2 = hex[c >> 4];
output[i * 2 + 1 = hex[c & 0x0F];
}
output[len * 2 = '\0';
}
int main() {
const char* str = "Hello, World!";
char hexStr
相关问题
c++ byte字符串转16进制字符串
可以使用stringstream和iomanip库来实现byte字符串转16进制字符串,具体代码如下:
```c++
#include <iostream>
#include <sstream>
#include <iomanip>
using namespace std;
string byteToHexStr(const unsigned char* byte_arr, int arr_len) {
stringstream ss;
ss << hex << setfill('0');
for (int i = 0; i < arr_len; i++) {
ss << setw(2) << static_cast<unsigned>(byte_arr[i]);
}
return ss.str();
}
int main() {
unsigned char byte_arr[] = {0x12, 0x34, 0xAB, 0xCD};
int arr_len = sizeof(byte_arr) / sizeof(byte_arr[0]);
string hex_str = byteToHexStr(byte_arr, arr_len);
cout << hex_str << endl; // 输出 "1234abcd"
return 0;
}
```
c++字符串转十六进制
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>
#### 引用[.reference_title]
- *1* *3* [C++ 字符串字符转为16进制](https://blog.csdn.net/qq_45219779/article/details/112758109)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [C++字符串转十六进制](https://blog.csdn.net/auccy/article/details/88343018)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]
阅读全文