〖方法一: /**//// 方法一: /**//// /// 判断字符是否英文半角字符或标点 /// /// /// 32 空格 /// 33-47 标点 /// 48-57 0~9 /// 58-64 标点 /// 65-90 A~Z /// 91-96 标点 /// 97-122 a~z /// 123-126 标点 /// public static bool IsBjChar(char c) { int i = (int)c; return i >= 32 && i <= 126; } /**//// /// 判断字符是否全角字符或标点 /// /// /// /// /// public static bool IsQjChar(char c) { if (c == '\u3000') return true; int i = (int)c - 65248; if (i < 32) return false; return IsBjChar((char)i); } /**//// /// 将字符串中的全角字符转换为半角 /// public static string ToBj(string s) { if (s == null || s.Trim() == string.Empty) return s; StringBuilder sb = new StringBuilder(s.Length); for (int i = 0; i < s.Length; i++) { if (s[i] == '\u3000') sb.Append('\u0020'); else if (IsQjChar(s[i])) sb.Append((char)((int)s[i] - 65248)); else sb.Append(s[i]); } return sb.ToString(); } 方法二: 添加 Microsoft Visual Basic.NET Runtime 引用。 Console.WriteLine(Microsoft.VisualBasic.Strings.StrConv("abcdefg", VbStrConv.Narrow, 0)); |
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