1 /// <summary>
2 /// 过滤字符串方法，用于将单引号等特殊符号转化成中文符号
3 /// </summary>
4 /// <param name="msg">要转化的字符串</param>
5 public static string FilterStr(string msg)
6 {
7 string result = "";
8
9 // msg = msg.Replace(",", "，");
10 //msg = msg.Replace("<", "<");
11 //msg = msg.Replace(">", ">");
12 // msg = msg.Replace("\n", "<br>");
13 // msg = msg.Replace("\"", """);
14
15 msg = msg.Trim();
16 msg = msg.Replace("‘", "‘‘");
17
18 result = msg;
19
20 return result;
21 }
22
23
24 public static void message(string meg)
25 {
26
27 }
28
29 public static string FilterStrHtml(string msg)
30 {
31 string result = "";
32
33
34 msg = msg.Replace("\‘", "‘");
35 //msg = msg.Replace(",", "，");
36 msg = msg.Replace("\n", "<br>");
37 result = msg;
38
39 return result;
40 }
41
42 public static string FilterStrnocode(string msg)
43 {
44 string result = "";
45
46
47 msg = msg.Replace("‘", "\‘");
48 msg = msg.Replace("<br>", "\n");
49 result = msg;
50
51 return result;
52 }
53
54
55
56 //弹出消息框
57 /// <summary>
58 /// 消息提示框
59 /// </summary>
60 /// <param name="msg">消息内容</param>
61 public static void ShowMsgBox(string msg)
62 {
63 System.Web.HttpContext.Current.Response.Write("<script>alert(‘"+msg+"‘)</script>");
64 }
65
66 /// <summary>
67 /// 弹出消息框,调用弹出消息框,不影响样式buss.Showmessage(this.Page,"提交成功");
68 /// </summary>
69 /// <param name="Page">Page对像</param>
70 /// <param name="msg">消息</param>
71 public static void Showmessage(System.Web.UI.Page Page, string msg)
72 {
73 //ClientScript.RegisterStartupScript(GetType(), "JS1", "alert(‘" + msg + "‘)", true);
74 // Page.ClientScript.RegisterStartupScript(Page.GetType(), "JS1", "alert(‘" + msg + "‘)", true);
75 Page.ClientScript.RegisterStartupScript(Page.GetType(), "", " <script lanuage=javascript>alert(‘" + msg + "‘)</script>");
76 }
77
78 /// <summary>
79 /// 截取字符串
80 /// </summary>
81 /// <param name="msg">原字符串</param>
82 /// <param name="lenth">要截取的长度</param>
83 /// <returns></returns>
84 public static string ReturnStr(string msg, int lenth)
85 {
86 string result = msg;
87
88 if (msg.Length > lenth)
89 {
90 result = result.Substring(0, lenth);
91 }
92 // http://www.cnblogs.com/sosoft/
93 return result;
94
95 }
96 /// <summary>
97 ///
98 /// </summary>
99 /// <param name="sqlstr"></param>
100 /// <returns></returns>
101
102 /// <summary>
103 /// 剪切指定长度的字符串，并去掉HTML标记
104 /// </summary>
105 /// <param name="strr">要剪切字符串的Object形式</param>
106 /// <param name="len">长度（中文长度为2)</param>
107 /// <returns></returns>
108 public static string CutStringX(object strr, int len)
109 {
110 string str = strr.ToString();
111 string strRet = "";
112 char CH;
113 int nLen = str.Length;
114 int nCutLen = 0;
115 int nPos = 0;
116 int bLeft = 0;
117 int nChinese = 0;
118 while (nPos < nLen && nCutLen < len)
119 {
120 CH = str[nPos];
121 nPos++;
122
123 if (CH == ‘<‘)
124 {
125 bLeft++;
126 continue;
127 }
128 if (CH == ‘>‘)
129 {
130 bLeft--;
131 continue;
132 }
133 if (nCutLen == 0 && CH.ToString() == " " && CH.ToString() == "\n")
134 {
135 continue;
136 }
137 if (bLeft == 0)
138 {
139 //是否为中文
140 if (IsChinese(CH))
141 {
142 nCutLen += 2;
143 nChinese++;
144 }
145 else
146 {
147 nCutLen += 1;
148 }
149 strRet += CH;
150 }
151 }
152 strRet = strRet.Replace(" ", " ");
153 if (nPos < nLen)
154 {
155 strRet += "";
156 // strRet += "...";
157 }
158 return strRet;
159 }
160
161
162 //是否为中文
163 public static bool IsChinese(char ch)
164 {
165 ASCIIEncoding en = new ASCIIEncoding();
166 byte[] b = en.GetBytes(ch.ToString());
167 return (b[0] == 63);
168 }
169
170 //HTML标记转换
171 public static string HTMLEncode(string str)
172 {
173 str = str.Replace("<", "<");
174 str = str.Replace(">", ">");
175 str = str.Replace("\n", "<br/>");
176
177 return str;
178 }
179
180
181 /// <summary>
182 /// 把日期时间转换为日期,去掉时间
183 /// </summary>
184 /// <param name="str">格式:YYYY-MM-DD HH:MM:SS</param>
185 /// <returns>返回日期 YYYY-MM-DD</returns>
186 public static string GetDate(string str)
187 {
188 string[] s = str.Split(‘ ‘);
189 string[] ss = s[0].Split(‘-‘);
190 if (ss[1].Length < 2)
191 ss[1] = "0" + ss[1];
192 if (ss[2].Length < 2)
193 ss[2] = "0" + ss[2];
194 return ss[0] + "-" + ss[1] + "-" + ss[2];
195 }
196
197 //随机函数产生字符
198 public static string CreateRandomCode(int codeCount, string allChar)
199 {
200 //验证码中的出现的字符，避免了一些容易混淆的字符。
201 if (string.IsNullOrEmpty(allChar)) allChar = "3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,J,K,M,N,P,Q,R,S,T,U,W,X,Y";
202 string[] allCharArray = allChar.Split(‘,‘);
203 string randomCode = "";
204 int temp = -1;
205 bool breCreate = (codeCount < 6 && allCharArray.Length > 15);
206
207 Random rand = new Random();
208 for (int i = 0; i < codeCount; i++)
209 {
210 if (temp != -1)
211 {
212 rand = new Random(i * temp * ((int)DateTime.Now.Ticks));
213 }
214 int t = rand.Next(allCharArray.Length);
215 if (temp == t && breCreate)
216 {
217 return CreateRandomCode(codeCount, allChar);
218 }
219 temp = t;
220 randomCode += allCharArray[t];
221 }
222 return randomCode;
223 }
C#实用的方法汇总