hex

问题 When I compile and run the below code, it throws the following exception: Unhandled Exception: System.FormatException: The specified format 'X' is invalid at System.NumberFormatter.NumberToString (System.String format, System.Globalization.NumberFormatInfo nfi) [0x00000] in :0 at System.NumberFormatter.NumberToString (System.String format, Decimal value, IFormatProvider fp) [0x00000] in :0 at System.Decimal.ToString (System.String format, IFormatProvider provider) [0x00000] in :0 at System

问题 My intention is to be able to print ascii from HEX-NUM, but I want to be able to change the input Hex values, sort of like this: WORKING-STORAGE SECTION. 01 HEX-INPUT PIC X(2) VALUE "3C". 01 HEX-NUM PIC X VALUE X"HEX-INPUT". However this leads to an error because the X"..." is trying to read HEX-INPUT as Hex values whereas I want to access the value I have defined as 3C. Any ideas what I need to do to achieve this flexibility I desire? I need to change HEX-INPUT often in my program hence the

问题 My intention is to be able to print ascii from HEX-NUM, but I want to be able to change the input Hex values, sort of like this: WORKING-STORAGE SECTION. 01 HEX-INPUT PIC X(2) VALUE "3C". 01 HEX-NUM PIC X VALUE X"HEX-INPUT". However this leads to an error because the X"..." is trying to read HEX-INPUT as Hex values whereas I want to access the value I have defined as 3C. Any ideas what I need to do to achieve this flexibility I desire? I need to change HEX-INPUT often in my program hence the

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 1 year ago . Improve this question I need to do this convertion but have no clue. Can someone help me? I need this to complete a calculator of base convertion. I also need that the function return a integer to convert to use in my others functions. PS: sorry for my bad english. i expect that

问题 Using Python I am trying to convert each pixel of a B/W image to hex and store it in a '.txt' file. I have to use C for my application so its easier to read from a text file then do the entire conversion in C code. I have tweaked some example code from online, but I am still not very experienced with using Python. When I run my python script it only produces two hex values instead of eight. At first I thought this was from the image being B/W, but an RGB image should contain 0x000000 for

问题 I have a Hex String which reads 18000000 this String is in Host byte order (Little endian) and I need to convert it to Network byte order (Big endian). The resultant Hex String will be 00000018 . To summarize I need to convert 18000000 to 00000018 How do I achieve this in PHP? 回答1: You can use pack / unpack functions to convert endianness: /** * Convert $endian hex string to specified $format * * @param string $endian Endian HEX string * @param string $format Endian format: 'N' - big endian,

问题 I have a Hex String which reads 18000000 this String is in Host byte order (Little endian) and I need to convert it to Network byte order (Big endian). The resultant Hex String will be 00000018 . To summarize I need to convert 18000000 to 00000018 How do I achieve this in PHP? 回答1: You can use pack / unpack functions to convert endianness: /** * Convert $endian hex string to specified $format * * @param string $endian Endian HEX string * @param string $format Endian format: 'N' - big endian,

问题 I have an string which contains a hexadezimal number and i want to increment that hex number until i reach my max number (FFF). How can i loop through so i can get every number between my start hex and FFF? I tried to convert the string in a byte array but got stuck after that. string stringHex = "7A"; string binaryval = ""; binaryval = Convert.ToString(Convert.ToInt32(stringHex, 16), 2); int numOfBytes = binaryval.Length / 8; byte[] bytes = new byte[numOfBytes]; for (int i = 0; i <

问题 Visual Basic 2010: Recently in one of my projects I have been tasked with reading several data fields in hex. Each field is three characters long. So this is what I have been doing: 'Read the hex value and convert it to decimal Dim hexVal as string = "38D" Dim intVal as integer = Convert.ToInt32(hexVal, 16) 'The integer result gets multiplied by a scaling factor '(this is set by the manufacturer for each field). Dim fac as single = 200 Dim final as single = intVal * fac Debug.Print (final)

问题 I have a color table related to products. The value of colors which is a hexadecimal is saved in a nvarchar field. In the products section I have a dropdown List for colors of a specified product. So I need to sort these colors from lighter to darker... I'm using MVC 3.0 and writting C# code. 回答1: You want to get their intensity, so convert from RGB to HSV. See this post for more details. 来源： https://stackoverflow.com/questions/7434347/sort-hex-color-values