Linq和Array并在数组中找到nr [英] Linq and Array and find nr in array
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问题描述
亲爱的朋友们,
我有一个字符串[]数组,1行符合选择标准。
我可以得到那一行与linq。但我想知道阵列中的哪个亚麻布。
我试过:
Dear friends,
I have a string[] array and 1 line meets a selection criterium.
I can get that line with linq. But I want to know which linenr in the array it is.
I tried:
string[] stringSeparators = new string[] { "\n" };
string[] lines = completeText.Split(stringSeparators, StringSplitOptions.None);
var line = lines.Where(x => x.Contains("into @"));
var lineNr = lines.Select(x => x.IndexOf("into @"));
lineNr nou说数组中的每一行,如果它找到所需的字符串部分@ into。
我希望lineNr将值6保持为数组中具有'@ into'的行的nr。
我该怎么做?
lineNr nou says per line in the array if it ca find the desired stringpart @ into.
I want lineNr to hold value 6 as being the nr in the array that has the line with '@ into'.
How can I do that?
推荐答案
你试过Array.FindIndex [ ^ ] ?
另一个选项是创建自定义索引;)
看看例子:
Abother option is to create custom index ;)
Have a look at example:
string completeText = "a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\nl";
string[] stringSeparators = new string[] { "\n" };
var lines = completeText.Split(stringSeparators, StringSplitOptions.None).Select((i, j)=>new{Text = i, LineNo=j});
var lineNr = lines.Where(x=>x.Text.Contains("f")).Select(x=>x.LineNo).FirstOrDefault();
行
存储数据如下:
lines
stores data as follow:
Text LineNo
a 0
b 1
c 2
d 3
e 4
f 5
g 6
h 7
i 8
j 9
k 10
l 11
LineNr
返回: 5
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