C# 如何将字符串拆分为字典
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How to split string into a dictionary
提问by TonyP
I have this string
我有这个字符串
string sx="(colorIndex=3)(font.family=Helvetica)(font.bold=1)";
and am splitting it with
我把它分开
string [] ss=sx.Split(new char[] { '(', ')' },
StringSplitOptions.RemoveEmptyEntries);
Instead of that, how could I split the result into a Dictionary<string,string>? The
resulting dictionary should look like:
相反，我怎么能把结果分成一个Dictionary<string,string>？生成的字典应如下所示：
Key Value
colorIndex 3
font.family Helvetica
font.bold 1
采纳答案by Fredrik M?rk
There may be more efficient ways, but this should work:
可能有更有效的方法，但这应该有效：
string sx = "(colorIndex=3)(font.family=Helvicta)(font.bold=1)";
var items = sx.Split(new[] { '(', ')' }, StringSplitOptions.RemoveEmptyEntries)
.Select(s => s.Split(new[] { '=' }));
Dictionary<string, string> dict = new Dictionary<string, string>();
foreach (var item in items)
{
dict.Add(item[0], item[1]);
}
回答by Elisha
It can be done using LINQ ToDictionary()extension method:
可以使用 LINQ ToDictionary()扩展方法来完成：
string s1 = "(colorIndex=3)(font.family=Helvicta)(font.bold=1)";
string[] t = s1.Split(new[] { '(', ')' }, StringSplitOptions.RemoveEmptyEntries);
Dictionary<string, string> dictionary =
t.ToDictionary(s => s.Split('=')[0], s => s.Split('=')[1]);
EDIT: The same result can be achieved without splitting twice:
编辑：无需拆分两次即可获得相同的结果：
Dictionary<string, string> dictionary =
t.Select(item => item.Split('=')).ToDictionary(s => s[0], s => s[1]);
回答by erikkallen
var dict = (from x in s1.Split(new[] { '(', ')' }, StringSplitOptions.RemoveEmptyEntries)
select new { s = x.Split('=') }).ToDictionary(x => x[0], x => x[1]);
回答by Sune Rievers
You could do this with regular expressions:
你可以用正则表达式做到这一点：
string sx = "(colorIndex=3)(font.family=Helvetica)(font.bold=1)";
Dictionary<string,string> dic = new Dictionary<string,string>();
Regex re = new Regex(@"\(([^=]+)=([^=]+)\)");
foreach(Match m in re.Matches(sx))
{
dic.Add(m.Groups[1].Value, m.Groups[2].Value);
}
// extract values, to prove correctness of function
foreach(var s in dic)
Console.WriteLine("{0}={1}", s.Key, s.Value);
回答by Greg Bacon
RandalSchwartzhas a rule of thumb: use split when you know what you want to throw away or regular expressions when you know what you want to keep.
Randal Schwartz有一个经验法则：当您知道要扔掉什么时使用 split 或当您知道要保留什么时使用正则表达式。
You know what you want to keep:
你知道你想保留什么：
string sx="(colorIndex=3)(font.family=Helvetica)(font.bold=1)";
Regex pattern = new Regex(@"\((?<name>.+?)=(?<value>.+?)\)");
var d = new Dictionary<string,string>();
foreach (Match m in pattern.Matches(sx))
d.Add(m.Groups["name"].Value, m.Groups["value"].Value);
With a little effort, you can do it with ToDictionary:
只需稍加努力，您就可以做到ToDictionary：
var d = Enumerable.ToDictionary(
Enumerable.Cast<Match>(pattern.Matches(sx)),
m => m.Groups["name"].Value,
m => m.Groups["value"].Value);
Not sure whether this looks nicer:
不确定这是否看起来更好：
var d = Enumerable.Cast<Match>(pattern.Matches(sx)).
ToDictionary(m => m.Groups["name"].Value,
m => m.Groups["value"].Value);
回答by LukeH
string sx = "(colorIndex=3)(font.family=Helvetica)(font.bold=1)";
var dict = sx.Split(new[] { '(', ')' }, StringSplitOptions.RemoveEmptyEntries)
.Select(x => x.Split('='))
.ToDictionary(x => x[0], y => y[1]);
回答by Soenhay
I am just putting this here for reference...
我只是把它放在这里供参考......
For ASP.net, if you want to parse a string from the client side into a dictionary this is handy...
对于 ASP.net，如果您想将来自客户端的字符串解析为字典，这很方便...
Create a JSON string on the client side either like this:
在客户端创建一个 JSON 字符串，如下所示：
var args = "{'A':'1','B':'2','C':'" + varForC + "'}";
or like this:
或者像这样：
var args = JSON.stringify(new { 'A':1, 'B':2, 'C':varForC});
or even like this:
甚至像这样：
var obj = {};
obj.A = 1;
obj.B = 2;
obj.C = varForC;
var args = JSON.stringify(obj);
pass it to the server...
将其传递给服务器...
then parse it on the server side like this:
然后像这样在服务器端解析它：
JavaScriptSerializer jss = new JavaScriptSerializer();
Dictionary<String, String> dict = jss.Deserialize<Dictionary<String, String>>(args);
JavaScriptSerializer requires System.Web.Script.Serialization.
JavaScriptSerializer 需要 System.Web.Script.Serialization。
回答by androschuk.a
You can try
你可以试试
string sx = "(colorIndex=3)(font.family=Helvetica)(font.bold=1)";
var keyValuePairs = sx.Split(new[] { '(', ')' }, StringSplitOptions.RemoveEmptyEntries)
.Select(v => v.Split('='))
.ToDictionary(v => v.First(), v => v.Last());
回答by BSalita
Often used for http query splitting.
通常用于 http 查询拆分。
Usage: Dictionary<string, string> dict = stringToDictionary("userid=abc&password=xyz&retain=false");
public static Dictionary<string, string> stringToDictionary(string line, char stringSplit = '&', char keyValueSplit = '=')
{
return line.Split(new[] { stringSplit }, StringSplitOptions.RemoveEmptyEntries).Select(s => s.Split(new[] { keyValueSplit })).ToDictionary(x => x[0], y => y[1]); ;
}
