C# 使用字符串键=>VAL??C
我该怎么走?像这样:C# 使用字符串键=>VAL??C,c#,C#,我该怎么走?像这样: public static string DictToQueryString(Dictionary<string, string> data) { string querystring = ""; foreach (string key, string val in data) querystring += key + "=" + val + "&"; return querystring; } 我相信这就
public static string DictToQueryString(Dictionary<string, string> data)
{
string querystring = "";
foreach (string key, string val in data)
querystring += key + "=" + val + "&";
return querystring;
}
我相信这就是你要找的
public static string DictToQueryString(Dictionary<string, string> data)
{
StringBuilder queryString = new StringBuilder();
foreach(var pair in data)
{
if (queryString.Length > 0)
queryString.AppendFormat("&{0}={1}", pair.Key, pair.Value);
else
queryString.AppendFormat("{0}={1}", pair.Key, pair.Value);
}
return queryString.ToString();
}
你的代码最终会有一个无关的&。你想要这个吗?很可能您不想要这个,但如果想要,请更正。假设不是这样,最简单的方法是让他们完成任务:
public static string DictToQueryString(Dictionary<string, string> data)
{
string querystring = "";
foreach (string key in data.Keys)
{
string val = data[key];
querystring += key + "=" + val + "&";
}
return querystring;
}
在C4.0中,将调用ToArray 另外,pair的类型将是KeyValuePair。我认为它来自PHP背景?
public static string DictToQueryString(Dictionary<string, string> data) {
return String.Join(
"&",
data.Select(kvp => String.Format("{0}={1}", kvp.Key, kvp.Value))
.ToArray()
);