有没有办法将文本从Unicode转换为ASCII？
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我需要的是，对于每个ASCII字符，一个等效的Unicode字符列表。
问题是，当人们在文档中键入内容时，诸如Microsoft Excel和Word之类的程序会插入非ASCII双引号，单引号，破折号等。我想将此文本存储在\“ varchar \”类型的数据库字段中，该字段需要单字节字符。
为了存储ASCII（单字节）文本，可以将其中一些Unicode字符视为与特定ASCII字符等效或足够相似，以将Unicode字符替换为等效ASCII字符就可以了。
我想要一个简单的函数，例如MapToASCII，它将Unicode文本转换为等效的ASCII，从而允许我为与任何ASCII字符都不相似的任何Unicode字符指定替换字符。
没有找到相关结果
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2 个回复
拟僚疽刊剔
ret = WideCharToMultiByte( CP_ACP, 0, L\"abc個חあЖdef\", -1, ac, sizeof( ac ), \"_\", NULL ); for ( i = 0; i < strlen( ac ); i++ ) printf( \"%c %02x\\n\", ac[i], ac[i] );敦肌
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Globalization; using System.IO; namespace UnicodeCharacterCategorizer { class Program { static void Main(string[] args) { string output_filename = \"output.htm\"; //set a filename if not specifying one through the command line Dictionary<UnicodeCategory,List<char>> category_character_sets = new Dictionary<UnicodeCategory,List<char>>(); foreach (UnicodeCategory c in Enum.GetValues(typeof(UnicodeCategory))) category_character_sets.Add( c, new List<char>() ); for (int i = 0; i <= 0xFFFF; i++) { if (i >= 0xD800 && i <= 0xDFFF) continue; //Skip ranges reserved for high/low surrogate pairs. char c = (char)i; UnicodeCategory category = char.GetUnicodeCategory( c ); category_character_sets[category].Add( c ); } StringBuilder file_data = new StringBuilder( @\"<!DOCTYPE html PUBLIC \"\"-//W3C//DTD XHTML 1.0 Transitional//EN\"\" \"\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\"\"><html xmlns=\"\"http://www.w3.org/1999/xhtml\"\"><head><title>Unicode Category Character Sets</title><style>.categoryblock{border:3px solid black;margin-bottom:10px;padding:5px;} .characterblock{display:inline-block;border:1px solid grey;padding:5px;margin-right:5px;} .character{display:inline-block;font-weight:bold;background-color:#ffeeee} .numericvalue{color:blue;}</style></head><body><form id=\"\"charactermap\"\">\" ); foreach (KeyValuePair<UnicodeCategory,List<char>> entry in category_character_sets) { file_data.Append( @\"<div class=\"\"categoryblock\"\"><h1>\" + entry.Key.ToString() + \":</h1><br />\" ); foreach (char c in entry.Value) { string hex_value = ((int)c).ToString( \"x\" ); file_data.Append( @\"<div class=\"\"characterblock\"\"><span class=\"\"character\"\">&#x\" + hex_value + @\";<br /><span class=\"\"numericvalue\"\">\" + hex_value + @\"</span><br /><input type=\"\"text\"\" name=\"\"r_\" + hex_value + @\"\"\" /></div>\" ); } file_data.Append( \"</div>\" ); } file_data.Append(\"</form></body></html>\" ); File.WriteAllText( output_filename, file_data.ToString(), Encoding.Unicode ); } } }