Question

C# split函数用法迷惑

举个例子：
string myString = "Hello World!";
string[] myWords = myString.Split(new char[2] { 'e','o'});
值为myword[0]="H";
myword[1]="ll";
myword[2]=" W";
myword[3]="rld!";

如果string myString = "Hello World!";
string[] myWords = myString.Split(new char[2] { 'e','o','l'});
按整理结果应该是myword[0]="H";
myword[1]=" W";
myword[2]="r";
myword[3]="d!";

但程序执行结果为
myword[0]="H";
myword[1]="";
myword[2]="";
myword[3]="";
myword[4]=" W";
myword[5]="r";
myword[6]="d!";
请问高手这是怎么来的？谢谢
哦对了，最下面一个数组长度写错了，长度应该是3

还是不明白

Answer 1

经过new char[2] { 'e','o'}分隔后
myword[0]="H";
myword[1]="ll";
myword[2]=" W";
myword[3]="rld!";
new char[3] { 'e','o','l'}是在new char[2] { 'e','o'}分隔基础上再次以'l'分隔，那么"ll"就被分隔成"","",""了，其它项不变,于是
myword[0]="H";
myword[1]="";
myword[2]="";
myword[3]="";
myword[4]=" W";
myword[5]="r";
myword[6]="d!";

Answer 2

你使用了字符"l"作为分隔符，那么Hello的两个ll里就会分隔出string.Empty的字符串对象，也就是这里的""