char[] char1 = {(char)19967};
char[] char2 = {(char)19968};
int len1 = System.Text.Encoding.Default.GetBytes(char1).Length; //返回 len1 = 1
int len2 = System.Text.Encoding.Default.GetBytes(char2).Length; //返回 len2 = 2
char[] char1 = {(char)19967};
char[] char2 = {(char)19968};
int len1 = System.Text.Encoding.Default.GetBytes(char1).Length; //返回 len1 = 1
int len2 = System.Text.Encoding.Default.GetBytes(char2).Length; //返回 len2 = 2