C#读出文本文件内容,遍历数组筛选出 含有汉字对应的拼音字符
情景描述:由于任务需要,现有一用户表数据,用户名 字段 在新增用户时,输入中文和拼音两种,先要区分同时含有中文和拼音字母的用户名。由于数据很多,可以通过一段代码完成查询:
前提:在阅读本文之前可以先了解前一篇文章: C# 汉字转拼音 将中文转换成拼音 (注:该方法只支持常规字,多音字和生僻字不支持)
创建控制台程序:
新建类:ChnToPh.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks; namespace npoi
{
public class ChnToPh
{
//定义拼音区编码数组
private static int[] getValue = new int[]
{
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-, -,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-,
-,-,-,-,-,-,-,-,-,-,-,-
};
//定义拼音数组
private static string[] getName = new string[]
{
"A","Ai","An","Ang","Ao","Ba","Bai","Ban","Bang","Bao","Bei","Ben",
"Beng","Bi","Bian","Biao","Bie","Bin","Bing","Bo","Bu","Ba","Cai","Can",
"Cang","Cao","Ce","Ceng","Cha","Chai","Chan","Chang","Chao","Che","Chen","Cheng",
"Chi","Chong","Chou","Chu","Chuai","Chuan","Chuang","Chui","Chun","Chuo","Ci","Cong",
"Cou","Cu","Cuan","Cui","Cun","Cuo","Da","Dai","Dan","Dang","Dao","De",
"Deng","Di","Dian","Diao","Die","Ding","Diu","Dong","Dou","Du","Duan","Dui",
"Dun","Duo","E","En","Er","Fa","Fan","Fang","Fei","Fen","Feng","Fo",
"Fou","Fu","Ga","Gai","Gan","Gang","Gao","Ge","Gei","Gen","Geng","Gong",
"Gou","Gu","Gua","Guai","Guan","Guang","Gui","Gun","Guo","Ha","Hai","Han",
"Hang","Hao","He","Hei","Hen","Heng","Hong","Hou","Hu","Hua","Huai","Huan",
"Huang","Hui","Hun","Huo","Ji","Jia","Jian","Jiang","Jiao","Jie","Jin","Jing",
"Jiong","Jiu","Ju","Juan","Jue","Jun","Ka","Kai","Kan","Kang","Kao","Ke",
"Ken","Keng","Kong","Kou","Ku","Kua","Kuai","Kuan","Kuang","Kui","Kun","Kuo",
"La","Lai","Lan","Lang","Lao","Le","Lei","Leng","Li","Lia","Lian","Liang",
"Liao","Lie","Lin","Ling","Liu","Long","Lou","Lu","Lv","Luan","Lue","Lun",
"Luo","Ma","Mai","Man","Mang","Mao","Me","Mei","Men","Meng","Mi","Mian",
"Miao","Mie","Min","Ming","Miu","Mo","Mou","Mu","Na","Nai","Nan","Nang",
"Nao","Ne","Nei","Nen","Neng","Ni","Nian","Niang","Niao","Nie","Nin","Ning",
"Niu","Nong","Nu","Nv","Nuan","Nue","Nuo","O","Ou","Pa","Pai","Pan",
"Pang","Pao","Pei","Pen","Peng","Pi","Pian","Piao","Pie","Pin","Ping","Po",
"Pu","Qi","Qia","Qian","Qiang","Qiao","Qie","Qin","Qing","Qiong","Qiu","Qu",
"Quan","Que","Qun","Ran","Rang","Rao","Re","Ren","Reng","Ri","Rong","Rou",
"Ru","Ruan","Rui","Run","Ruo","Sa","Sai","San","Sang","Sao","Se","Sen",
"Seng","Sha","Shai","Shan","Shang","Shao","She","Shen","Sheng","Shi","Shou","Shu",
"Shua","Shuai","Shuan","Shuang","Shui","Shun","Shuo","Si","Song","Sou","Su","Suan",
"Sui","Sun","Suo","Ta","Tai","Tan","Tang","Tao","Te","Teng","Ti","Tian",
"Tiao","Tie","Ting","Tong","Tou","Tu","Tuan","Tui","Tun","Tuo","Wa","Wai",
"Wan","Wang","Wei","Wen","Weng","Wo","Wu","Xi","Xia","Xian","Xiang","Xiao",
"Xie","Xin","Xing","Xiong","Xiu","Xu","Xuan","Xue","Xun","Ya","Yan","Yang",
"Yao","Ye","Yi","Yin","Ying","Yo","Yong","You","Yu","Yuan","Yue","Yun",
"Za", "Zai","Zan","Zang","Zao","Ze","Zei","Zen","Zeng","Zha","Zhai","Zhan",
"Zhang","Zhao","Zhe","Zhen","Zheng","Zhi","Zhong","Zhou","Zhu","Zhua","Zhuai","Zhuan",
"Zhuang","Zhui","Zhun","Zhuo","Zi","Zong","Zou","Zu","Zuan","Zui","Zun","Zuo"
};
//建立一个convertCh方法用于将汉字转换成全拼的拼音,其中,参数代表汉字字符串,此方法的返回值是转换后的拼音字符串
public static string convertCh(string Chstr)
{
Regex reg = new Regex("^[\u4e00-\u9fa5]$");//验证是否输入汉字
byte[] arr = new byte[];
string pystr = "";
int asc = , M1 = , M2 = ;
char[] mChar = Chstr.ToCharArray();//获取汉字对应的字符数组
for (int j = ; j < mChar.Length; j++)
{
//如果输入的是汉字
if (reg.IsMatch(mChar[j].ToString()))
{
arr = System.Text.Encoding.Default.GetBytes(mChar[j].ToString());
M1 = (short)(arr[]);
M2 = (short)(arr[]);
asc = M1 * + M2 - ;
if (asc > && asc < )
{
pystr += mChar[j];
}
else
{
switch (asc)
{
case -:
pystr += "Zhen"; break;
case -:
pystr += "Qian"; break;
case -:
pystr += "Jia"; break;
case -:
pystr += "Ge"; break;
case -:
pystr += "Ga"; break;
case -:
pystr += "La"; break;
case -:
pystr += "Chen"; break;
case -:
pystr += "Mao"; break;
case -:
pystr += "Mao"; break;
case -:
pystr += "Die"; break;
case -:
pystr += "Tian"; break;
default:
for (int i = (getValue.Length - ); i >= ; i--)
{
if (getValue[i] <= asc)//判断汉字的拼音区编码是否在指定范围内
{
pystr += getName[i];//如果不超出范围则获取对应的拼音
break;
}
}
break;
}
}
}
else//如果不是汉字
{
pystr += mChar[j].ToString();//如果不是汉字则返回
}
}
return pystr;//返回获取到的汉字拼音
}
}
}
在Program.cs加入以下代码
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks; namespace npoi
{
class Program
{
static void Main(string[] args)
{
string path = @"C:\Users\Jie\Desktop\data.txt";
System.Text.Encoding.GetEncoding("gb2312");
//ReadAllLines 必须设置默认编码,不然读取汉字会乱码
List<string> list = File.ReadAllLines(path, System.Text.Encoding.Default).ToList();
List<string> listhz = new List<string>();
List<string> listzm = new List<string>();
foreach (string s in list) {
if (Regex.IsMatch(s, @"^[\u4e00-\u9fa5]+$"))
{ listhz.Add(s);
}
else { listzm.Add(s);
}
} foreach (string hz in listhz) {
var hz2py = ChnToPh.convertCh(hz); foreach(string zm in listzm)
{
if (zm.ToLower() == hz2py.ToLower()) { Console.WriteLine(string.Format("{0}:{1}", hz, zm));
}
}
} Console.ReadLine();
}
}
}
新建 data.txt 如下
放置对应的目录。运行代码 如图:
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