C# 在C中按升序对字符串数组排序
我有一个字符串数组C# 在C中按升序对字符串数组排序,c#,.net,visual-studio,C#,.net,Visual Studio,我有一个字符串数组 string[] my_array = {"5:five", "8:eight","4:four", "7:seven","1:one", "6:six"}; 我希望有一个如下所示的输出字符串,以便以升序连接这些值 output_string = "onefourfivesixseveneight"; 这是我的密码 string [] args = {"5:five", "8:eight","4:four", "7:seven","1:one",
string[] my_array = {"5:five", "8:eight","4:four", "7:seven","1:one", "6:six"};
我希望有一个如下所示的输出字符串,以便以升序连接这些值
output_string = "onefourfivesixseveneight";
这是我的密码
string [] args = {"5:five", "8:eight","4:four", "7:seven","1:one",
"6:six" ,"840"};
string outputString = "";
int lowest_divisor = 1;
int dividend = Convert.ToInt32(args[args.Length - 1]);
for(int i = 0; i<args.Length - 1; i++)
{
string[] pairs = args[i].Split(":");
int divisor = Convert.ToInt32(pairs[0]);
string pairString = pairs[1];
if(i == 0)
{
lowest_divisor = divisor;
outputString = pairString;
}
else if(divisor <= lowest_divisor)
{
outputString = pairString + outputString;
lowest_divisor = divisor;
}
else if(divisor > lowest_divisor)
{
outputString = outputString + pairString;
}
}
首先,我们可以限制为int:value格式的字符串
IEnumerable<string> validStrings = my_array.Where(x => x.Contains(':') && int.TryParse(x.Split(':')[0], out int test));
我认为最简单的方法是使用linq。 像这样:
string outputString = string.Join("", args.OrderBy(x => int.Parse(x.Split(':')[0])).Select(x => x.Split(':').Length > 1 ? x.Split(':')[1] : ""));
如果您不控制内容,可以添加检查以确保它不会引发异常,这比提供的linq解决方案要详细一点
SortedDictionary<int, string> dict = new SortedDictionary<int, string>();
foreach (string s in my_array)
{
string[] splitArr=s.Split(':');
dict.Add(Convert.ToInt32(splitArr[0]), splitArr[1]);
}
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair<int, string> kvp in dict)
{
sb.Append(kvp.Value);
}
string final=sb.ToString();
所有除数的东西都在做什么?你现在得到的结果是什么?这与你的预期有什么不同。对字符串数组进行排序就像对args.Takeargs.Length-1.OrderBya=>a一样简单,但是不清楚还需要做什么……假设我有一个字符串数组:my_array={5:5,8:8,4:4,7:7,1:1,6:6};我想要一个如下格式的输出:output_string=onefourfivesixeveneight。注意字符串的顺序
string outputString = string.Join("", args.OrderBy(x => int.Parse(x.Split(':')[0])).Select(x => x.Split(':').Length > 1 ? x.Split(':')[1] : ""));
SortedDictionary<int, string> dict = new SortedDictionary<int, string>();
foreach (string s in my_array)
{
string[] splitArr=s.Split(':');
dict.Add(Convert.ToInt32(splitArr[0]), splitArr[1]);
}
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair<int, string> kvp in dict)
{
sb.Append(kvp.Value);
}
string final=sb.ToString();