完成字符查找与替换

软件技术国家教学资源库建设项目软件开发素材之C源代码一、名称完成字符查找与替换二、创建或搜集相关信息搜集单位重庆电子工程职业学院搜集时间20120805来源互联网三、适用对象学生、教师、C及ASPNET项目开发人员、相关技术人员等。四、功能简介使用对话框完成字符的查找与替换。五、程序代码程序名称PROGRAMCSUSINGSYSTEMUSINGSYSTEMCOLLECTIONSGENERICUSINGSYSTEMLINQUSINGSYSTEMWINDOWSFORMSNAMESPACEFINDAANDREPLACESTATICCLASSPROGRAM/应用程序的主入口点。/STATHREADSTATICVOIDMAINAPPLICATIONENABLEVISUALSTYLESAPPLICATIONSETCOMPATIBLETEXTRENDERINGDEFAULTFALSEAPPLICATIONRUNNEWFORM1程序名称FORM1CSUSINGSYSTEMUSINGSYSTEMCOLLECTIONSGENERICUSINGSYSTEMCOMPONENTMODELUSINGSYSTEMDATAUSINGSYSTEMDRAWINGUSINGSYSTEMLINQUSINGSYSTEMTEXTUSINGSYSTEMWINDOWSFORMSNAMESPACEFINDAANDREPLACEPUBLICPARTIALCLASSFORM1FORMPUBLICFORM1INITIALIZECOMPONENTPRIVATEVOIDBTNOPEN_CLICKOBJECTSENDER,EVENTARGSE/设置过滤条件OPENFILEDIALOG1FILTER“文本TXT|TXT“OPENFILEDIALOG1TITLE“打开“/打开文件并将内容显示在RICHTEXTBOX控件中IFOPENFILEDIALOG1SHOWDIALOGDIALOGRESULTOKRTBCONTENTLOADFILEOPENFILEDIALOG1FILENAME,RICHTEXTBOXSTREAMTYPEPLAINTEXTINTNUM0PRIVATEVOIDBTNSEARCH_CLICKOBJECTSENDER,EVENTARGSESTRINGSEARCHSTRTHISTXTSEARCHTEXTTRIMSTRINGREPLACEMENTTHISTXTREPLACETEXTTRIMIFSEARCHSTR“/条件不为空IFRTBCONTENTTEXTLENGTH0/内容不为空IFNUMRTBCONTENTFINDSEARCHSTR,NUM,RICHTEXTBOXFINDSMATCHCASE1MESSAGEBOXSHOW“没有找到结果“NUM0/没找到ELSE/选中文件RTBCONTENTSELECTNUM,SEARCHSTRLENGTHRTBCONTENTSELECTIONCOLORCOLORRED/找到了查找下一个NUMNUMSEARCHSTRLENGTHMESSAGEBOXSHOW“查找完成“ELSEMESSAGEBOXSHOW“请输入查询条件“PRIVATEVOIDBTNREPLACE_CLICKOBJECTSENDER,EVENTARGSESTRINGSEARCHSTRTHISTXTSEARCHTEXTTRIMSTRINGREPLACEMENTTHISTXTREPLACETEXTTRIMRT