C#超实用代码段合集
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2022-04-29 10:42:22
本文实例总结了几个非常实用的c#代码。分享给大家供大家参考,具体如下:
1. c#在托盘显示图标
using system;
using system.col...
本文实例总结了几个非常实用的c#代码。分享给大家供大家参考,具体如下:
1. c#在托盘显示图标
using system; using system.collections.generic; using system.componentmodel; using system.data; using system.drawing; using system.linq; using system.text; using system.windows.forms; namespace notifyiconshow { public partial class notifyiconshow : form { public notifyiconshow() { initializecomponent(); } #region//设置鼠标放在托盘图标上面的文字 /// <summary> /// 方法名称:notifyiconshow_load(窗体加载事件) /// 方法作用:设置鼠标放在托盘图标上面的文字 /// 完成日期:2010年5月16日 /// 作者:心语 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void notifyiconshow_load(object sender, eventargs e) { //设置鼠标放在托盘图标上面的文字 this.notifyicon1.text = "心语托盘图标"; } #endregion #region//创建对象及声明变量 //创建notifyicon对象 notifyicon notifyicon = new notifyicon(); //创建托盘图标对象 icon ico = new icon("clock2.ico"); //创建托盘菜单对象 contextmenu notifycontextmenu = new contextmenu(); #endregion #region//隐藏任务栏图标,显示托盘图标 /// <summary> /// 方法名称:notifyiconshow_sizechanged(窗体大小改变后事件) /// 方法作用:隐藏任务栏图标,显示托盘图标 /// 完成日期:2010年5月16日 /// 作者:心语 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void notifyiconshow_sizechanged(object sender, eventargs e) { //判断是否选择的是最小化按钮 if (windowstate == formwindowstate.minimized) { //托盘显示图标等于托盘图标对象 //注意notifyicon1是控件的名字而不是对象的名字 notifyicon1.icon = ico; //隐藏任务栏区图标 this.showintaskbar = false; //图标显示在托盘区 notifyicon.visible = true; } } #endregion #region//还原窗体 /// <summary> /// 方法名称:notifyicon1_click(托盘图标单击) /// 方法作用:还原窗体 /// 完成日期:2010年5月16日 /// 作者:心语 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void notifyicon1_click(object sender, eventargs e) { //判断是否已经最小化于托盘 if (windowstate == formwindowstate.minimized) { //还原窗体显示 windowstate = formwindowstate.normal; //激活窗体并给予它焦点 this.activate(); //任务栏区显示图标 this.showintaskbar = true; //托盘区图标隐藏 notifyicon.visible = false; } } #endregion } }
2. c#求最小公倍数
class program { static void main(string[] args) { int n = m(20, 15); system.console.writeline("最小公倍数为:" + n.tostring()); system.console.read(); } static int f(int a, int b)//最大公约数 { if (a < b) { a = a + b; b = a - b; a = a - b; } return (a % b == 0) ? b : f(a % b, b); } static int m(int a, int b)//最小公倍数 { return a * b / f(a, b); } }
3. c#汉字转拼音
/// <summary> /// 把汉字转换成拼音(全拼) /// </summary> /// <param name="hzstring">汉字字符串</param> /// <returns>转换后的拼音(全拼)字符串</returns> public static string converte(string hzstring) { // 匹配中文字符 regex regex = new regex("^[\u4e00-\u9fa5]$"); byte[] array = new byte[2]; string pystring = ""; int chrasc = 0; int i1 = 0; int i2 = 0; char[] nowchar = hzstring.tochararray(); for (int j = 0; j < nowchar.length; j++) { // 中文字符 if (regex.ismatch(nowchar[j].tostring())) { array = system.text.encoding.default.getbytes(nowchar[j].tostring()); i1 = (short)(array[0]); i2 = (short)(array[1]); chrasc = i1 * 256 + i2 - 65536; if (chrasc > 0 && chrasc < 160) { pystring += nowchar[j]; } else { // 修正部分文字 if (chrasc == -9254) // 修正“圳”字 pystring += "zhen"; else { for (int i = (pyvalue.length - 1); i >= 0; i--) { if (pyvalue[i] <= chrasc) { pystring += pyname[i]; break; } } } } } // 非中文字符 else { pystring += nowchar[j].tostring(); } } return pystring; } private static int[] pyvalue = new int[] { -20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257,-20242,-20230,-20051,-20036, -20032,-20026,-20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775,-19774,-19763, -19756,-19751,-19746,-19741,-19739,-19728,-19725,-19715,-19540,-19531,-19525,-19515, -19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263,-19261,-19249, -19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006, -19003,-18996,-18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735, -18731,-18722,-18710,-18697,-18696,-18526,-18518,-18501,-18490,-18478,-18463,-18448, -18447,-18446,-18239,-18237,-18231,-18220,-18211,-18201,-18184,-18183, -18181,-18012, -17997,-17988,-17970,-17964,-17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752, -17733,-17730,-17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482, -17468,-17454,-17433,-17427,-17417,-17202,-17185,-16983,-16970,-16942,-16915,-16733, -16708,-16706,-16689,-16664,-16657,-16647,-16474,-16470,-16465,-16459,-16452,-16448, -16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220,-16216, -16212,-16205,-16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944, -15933,-15920,-15915,-15903,-15889,-15878,-15707,-15701,-15681,-15667,-15661,-15659, -15652,-15640,-15631,-15625,-15454,-15448,-15436,-15435,-15419,-15416,-15408,-15394, -15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153,-15150, -15149,-15144,-15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109, -14941,-14937,-14933,-14930,-14929,-14928,-14926,-14922,-14921,-14914,-14908,-14902, -14894,-14889,-14882,-14873,-14871,-14857,-14678,-14674,-14670,-14668,-14663,-14654, -14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353,-14345, -14170,-14159,-14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112, -14109,-14099,-14097,-14094,-14092,-14090,-14087,-14083,-13917,-13914,-13910,-13907, -13906,-13905,-13896,-13894,-13878,-13870,-13859,-13847,-13831,-13658,-13611,-13601, -13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356,-13343, -13340,-13329,-13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076, -13068,-13063,-13060,-12888,-12875,-12871,-12860,-12858,-12852,-12849,-12838,-12831, -12829,-12812,-12802,-12607,-12597,-12594,-12585,-12556,-12359,-12346,-12320,-12300, -12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831,-11798, -11781,-11604,-11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067, -11055,-11052,-11045,-11041,-11038,-11024,-11020,-11019,-11018,-11014,-10838,-10832, -10815,-10800,-10790,-10780,-10764,-10587,-10544,-10533,-10519,-10331,-10329,-10328, -10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256,-10254 }; private static string[] pyname = 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" };
4. c#计算代码运行时间
//导入该命名空间 using system.diagnostice; stopwatch watch=new stopwatch (); watch.start(); /* 此处为要计算的运行代码 */ watch.stop(); //获取当前实例测量得出的总运行时间(以毫秒为单位) string time = watch.elapsedmilliseconds.tostring();
5. c#根据日期获取星期方法
protected void page_load(object sender, eventargs e) { int m = system.datetime.today.month; int y = system.datetime.today.year; int d = system.datetime.today.day; int weeks = getweekday(y, m, d); switch (weeks) { case 1: this.textbox1.text = "星期一"; break; case 2: this.textbox1.text = "星期二"; break; case 3: this.textbox1.text = "星期三"; break; case 4: this.textbox1.text = "星期四"; break; case 5: this.textbox1.text = "星期五"; break; case 6: this.textbox1.text = "星期六"; break; case 7: this.textbox1.text = "星期日"; break; } } /// <summary>根据日期,获得星期几</summary> /// <param name="y">年</param> /// <param name="m">月</param> /// <param name="d">日</param> /// <returns>星期几,1代表星期一;7代表星期日</returns> public static int getweekday(int y, int m, int d) { if (m == 1) m = 13; if (m == 2) m = 14; int week = (d + 2 * m + 3 * (m + 1) / 5 + y + y / 4 - y / 100 + y / 400) % 7 + 1; return week; }
6. c#删除文件夹的方法
/// <summary> /// c# 删除文件夹 /// 用法: deletefolder(@"c:\\1"); /// </summary> /// <param name="dir"></param> private static void deletefolder(string dir) { // 循环文件夹里面的内容 foreach (string f in directory.getfilesystementries(dir)) { // 如果是文件存在 if (file.exists(f)) { fileinfo fi = new fileinfo(f); if (fi.attributes.tostring().indexof("readonly") != 1) { fi.attributes = fileattributes.normal; } // 直接删除其中的文件 file.delete(f); } else { // 如果是文件夹存在 // 递归删除子文件夹 deletefolder(f); } } // 删除已空文件夹 directory.delete(dir); }
希望本文所述对大家c#程序设计有所帮助。
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