C#中的字符串操作

//1. 将int型list转为string型list:
List<int> intList =newList<int>(new int[]{1,2,3});
List<string> strList = intList.ConvertAll<string>(x => x.ToString());

//2. 字符串，整型，浮点型等类型直接的转换(Convert)：
string str = "2";
int num = Convert.ToInt32(str);

//3. 分割换行符，去除空行
string[] lines = content.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries);