init commit

20220330_Vote/Ewide.Core/Util/StringExtensions.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+public static class StringExtensions
+{
+    /// <summary>
+    /// 下划线转为驼峰
+    /// </summary>
+    /// <param name="str"></param>
+    /// <param name="initialsUppder"></param>
+    /// <returns></returns>
+    public static string ToCamelCase(this string str, char split = '_', bool initialsUppder = true)
+    {
+        var _ = string.Join("",
+            str.Split(split).Select(p => p.Length > 1 ?
+                p.First().ToString().ToUpper() + p[1..] : p.ToUpper()
+            )
+        );
+
+        if (!initialsUppder && _.Length > 1)
+        {
+            _ = _.First().ToString().ToUpper() + _[1..];
+        }
+
+        return _;
+    }
+
+    /// <summary>
+    /// 驼峰转为下划线
+    /// </summary>
+    /// <param name="str"></param>
+    /// <returns></returns>
+    public static string ToUnderScoreCase(this string str)
+    {
+        var _ = new Regex(@"[A-Z]").Replace(str, "_$0");
+
+        if (_.Length > str.Length)
+        {
+            _ = _[1..];
+        }
+
+        return _.ToLower();
+    }
+}