摘要：
1. 定义字典变量，并初始化 // 元素值字典 Dictionary dic = new Dictionary() { { "名称",""}, {"描述1",""}, {"拆分2",""} }2.清空字典值，保留键 Dictionary.KeyCollection keys = dic.Keys; String[] s = keys.ToArray(); foreach (string a in s) { dic[a] = ""; }不能直... 阅读全文
摘要：
/// /// 执行查询语句，返回DataSet /// /// 查询语句 /// DataSet public DataSet Query(string SQLString, params SqlParameter[] cmdParms) { using (SqlConnection connection = new SqlConnection(connectionString)) { SqlCommand cmd = ne... 阅读全文