c# - 从字符串 ascii 转换为字符串 Hex

Question

假设我有这个字符串

string str = "1234"

我需要一个将这个字符串转换成这个字符串的函数:

"0x31 0x32 0x33 0x34"  

网上查了很多类似的东西，都没有这个问题的答案。

Answer 1

string str = "1234";
char[] charValues = str.ToCharArray();
string hexOutput="";
foreach (char _eachChar in charValues )
{
    // Get the integral value of the character.
    int value = Convert.ToInt32(_eachChar);
    // Convert the decimal value to a hexadecimal value in string form.
    hexOutput += String.Format("{0:X}", value);
    // to make output as your eg 
    //  hexOutput +=" "+ String.Format("{0:X}", value);

}

    //here is the HEX hexOutput 
    //use hexOutput