前言 在foreach中删除元素时,每一次删除都会导致集合的大小... List<string> tempList = new List<string>() { "a","b","b","c" }; for (int i = 0; i < tempList.Count; i++) { if (tempList[i] == "b") { t
public int ModifyBy(Expression<Func<T, bool>> whereLambda, string[] propertyNames, object[] perpertyValues) { //1.查询要修改的对象集合 var list = db.Set<T>().Where(whereLambda).ToList(); //2.获取...
public static List<string> GetIntersection(List<string> list1, List<string> list2) { List<string> list3 = new List<string>(); //第一种方法:循环遍历 //O(n×m) for (int i = 0; i < list1.Count; i++...
List<string> list = new List<string>(Old); list.AddRange(New); StringBuilder sb = new StringBuilder(); foreach (var s in list) { if (s != "") { sb.Append(s).Append(";"); } } return sb....
public static int ExecuteSqlTran(List<CommandInfo> list, List<CommandInfo> oracleCmdSqlList) { using (SqlConnection conn = new SqlConnection(connectionString)) { conn.Open(); SqlCommand cmd = ...
List<string> list = new List<string>(); foreach (DataRow dr in dt.Rows) { if (!Convert.IsDBNull(dr["XlMc"])) list.Add(dr["XlMc"].ToString()); } return list.ToArray(); } 4,数据源绑定: ...
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前言 在foreach中删除元素时,每一次删除都会导致集合的大小... List<string> tempList = new List<string>() { "a","b","b","c" }; for (int i = 0; i < tempList.Count; i++) { if (tempList[i] == "b") { t
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