vb.net 使用 .Split 删除空条目
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Using .Split to remove empty entries
提问by Cyclone
I am trying to split at every space " ", but it will not let me remove empty entries and then find the length, but it is treated as a syntax error.
我试图在每个空格处拆分“”，但它不会让我删除空条目然后找到长度，但它被视为语法错误。
My code:
我的代码：
TextBox1.Text.Split(" ", StringSplitOptions.RemoveEmptyEntries).Length
What am I doing wrong?
我究竟做错了什么？
回答by Ken Browning
Well, the first parameter to the Splitfunction needs to be an array of strings or characters. Try:
好吧，该Split函数的第一个参数需要是一个字符串或字符数组。尝试：
TextBox1.Text.Split(New String() {" "}, StringSplitOptions.RemoveEmptyEntries).Length
You might not have noticed this before when you didn't specify the 2nd parameter. This is because the Splitmethod has an overload which takes in a ParamArray. This means that calls to Split("string 1", "string 2", "etc")auto-magically get converted into a call to Split(New String() {"string 1", "string 2", "etc"})
当您之前没有指定第二个参数时，您可能没有注意到这一点。这是因为该Split方法有一个重载，它接受一个 ParamArray。这意味着调用Split("string 1", "string 2", "etc")自动神奇地转换为调用Split(New String() {"string 1", "string 2", "etc"})
回答by Jay Riggs
Try:
尝试：
TextBox1.Text.Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries).Length
回答by o.k.w
This is what I did:
这就是我所做的：
TextBox1.Text = "1 2 3 5 6"
TextBox1.Text.Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries).Length
Result: Length = 5
结果：长度 = 5
回答by Mr. Mann
// char array is used instead of normal char because ".Split()"
// accepts a char array
char[] c = new char[1];
//space character in array
c[0] = ' ';
// a new string array is created which will hold whole one line
string[] Warray = Line.Split(c, StringSplitOptions.RemoveEmptyEntries);
