\u8fd9\u662f\u66ff\u4ee3 string.Join() \u6700\u5e38\u7528\u7684\u65b9\u6848，\u5c24\u5176\u9002\u5408\u9700\u8981\u81ea\u5b9a\u4e49\u62fc\u63a5\u903b\u8f91\u7684\u573a\u666f（\u6bd4\u5982\u7ed9\u5143\u7d20\u52a0\u524d\u7f00 \/ \u540e\u7f00\u3001\u8fc7\u6ee4\u7a7a\u503c），\u6027\u80fd\u8fdc\u4f18\u4e8e\u76f4\u63a5\u5b57\u7b26\u4e32\u62fc\u63a5\u3002<\/p>\n
using System;
\nusing System.Collections.Generic;
\nusing System.Text;<\/p>\n
class Program
\n{
\n static void Main()
\n {
\n List<string> result = new List<string> { "\u82f9\u679c", "\u9999\u8549", "\u6a59\u5b50", null }; \/\/ \u5305\u542bnull\u5143\u7d20
\n StringBuilder sb = new StringBuilder();<\/p>\n
foreach (var item in result)
\n {
\n \/\/ \u81ea\u5b9a\u4e49\u903b\u8f91：\u8df3\u8fc7null，\u7ed9\u975e\u7a7a\u5143\u7d20\u52a0\u300c\u3010\u3011\u300d，\u7528\u987f\u53f7\u5206\u9694
\n if (!string.IsNullOrEmpty(item))
\n {
\n sb.Append($"\u3010{item}\u3011\u3001");
\n }
\n }<\/p>\n
\/\/ \u79fb\u9664\u6700\u540e\u4e00\u4e2a\u591a\u4f59\u7684\u5206\u9694\u7b26（\u5982\u679c\u6709）
\n if (sb.Length > 0)
\n {
\n sb.Length–; \/\/ \u53bb\u6389\u6700\u540e\u4e00\u4e2a\u300c\u3001\u300d
\n }<\/p>\n
string finalStr = sb.ToString();
\n Console.WriteLine(finalStr); \/\/ \u8f93\u51fa：\u3010\u82f9\u679c\u3011\u3001\u3010\u9999\u8549\u3011\u3001\u3010\u6a59\u5b50\u3011
\n }
\n}<\/p>\n
\u8fd9\u662f\u6700\u76f4\u89c2\u4f46\u6027\u80fd\u6700\u5dee\u7684\u65b9\u5f0f，\u4ec5\u9002\u5408\u5217\u8868\u5143\u7d20\u6781\u5c11（\u6bd4\u5982\u5c11\u4e8e 10 \u4e2a）\u7684\u573a\u666f，\u4e0d\u63a8\u8350\u5728\u751f\u4ea7\u73af\u5883\u5927\u91cf\u4f7f\u7528\u3002<\/p>\n
using System;
\nusing System.Collections.Generic;<\/p>\n
class Program
\n{
\n static void Main()
\n {
\n List<string> result = new List<string> { "A", "B", "C" };
\n string finalStr = "";<\/p>\n
foreach (var item in result)
\n {
\n finalStr += item + "|"; \/\/ \u7528\u7ad6\u7ebf\u5206\u9694
\n }<\/p>\n
\/\/ \u79fb\u9664\u6700\u540e\u4e00\u4e2a\u5206\u9694\u7b26
\n if (finalStr.Length > 0)
\n {
\n finalStr = finalStr.Substring(0, finalStr.Length – 1);
\n }<\/p>\n
Console.WriteLine(finalStr); \/\/ \u8f93\u51fa：A|B|C
\n }
\n}<\/p>\n
\u901a\u8fc7 LINQ \u7684 Aggregate() \u65b9\u6cd5\u5b9e\u73b0\u62fc\u63a5，\u4ee3\u7801\u7b80\u6d01，\u9002\u5408\u7b80\u5355\u573a\u666f，\u672c\u8d28\u662f LINQ \u5c01\u88c5\u7684\u5faa\u73af\u62fc\u63a5\u3002<\/p>\n
using System;
\nusing System.Collections.Generic;
\nusing System.Linq; \/\/ \u5f15\u5165LINQ\u547d\u540d\u7a7a\u95f4<\/p>\n
class Program
\n{
\n static void Main()
\n {
\n List<string> result = new List<string> { "\u5f20\u4e09", "\u674e\u56db", "\u738b\u4e94" };<\/p>\n
\/\/ \u65b9\u5f0f1：\u65e0\u81ea\u5b9a\u4e49\u903b\u8f91，\u76f4\u63a5\u62fc\u63a5（\u5206\u9694\u7b26\u4e3a\u7a7a\u683c）
\n string str1 = result.Aggregate((current, next) => current + " " + next);
\n Console.WriteLine(str1); \/\/ \u8f93\u51fa：\u5f20\u4e09 \u674e\u56db \u738b\u4e94<\/p>\n
\/\/ \u65b9\u5f0f2：\u5e26\u81ea\u5b9a\u4e49\u903b\u8f91（\u8fc7\u6ee4\u7a7a\u503c+\u52a0\u524d\u7f00）
\n string str2 = result
\n .Where(s => !string.IsNullOrEmpty(s)) \/\/ \u8fc7\u6ee4\u7a7a\u5143\u7d20
\n .Aggregate("", (current, next) => current + $"\u59d3\u540d：{next}；");<\/p>\n
\/\/ \u79fb\u9664\u6700\u540e\u4e00\u4e2a\u591a\u4f59\u7684\u5206\u9694\u7b26
\n if (str2.Length > 0)
\n {
\n str2 = str2.TrimEnd('；');
\n }
\n Console.WriteLine(str2); \/\/ \u8f93\u51fa：\u59d3\u540d：\u5f20\u4e09；\u59d3\u540d：\u674e\u56db；\u59d3\u540d：\u738b\u4e94
\n }
\n}<\/p>\n
\u7ed3\u5408 LINQ \u7684\u7b80\u6d01\u6027\u548c StringBuilder \u7684\u9ad8\u6027\u80fd，\u662f\u300cLINQ \u573a\u666f + \u81ea\u5b9a\u4e49\u62fc\u63a5\u300d\u7684\u6700\u4f18\u89e3\u3002<\/p>\n
using System;
\nusing System.Collections.Generic;
\nusing System.Linq;
\nusing System.Text;<\/p>\n
class Program
\n{
\n static void Main()
\n {
\n List<string> result = new List<string> { "1", "2", "3", "" }; \/\/ \u5305\u542b\u7a7a\u5b57\u7b26\u4e32
\n string finalStr = result
\n .Where(s => !string.IsNullOrWhiteSpace(s)) \/\/ \u8fc7\u6ee4\u7a7a\/\u7a7a\u767d\u5143\u7d20
\n .Aggregate(
\n new StringBuilder(), \/\/ \u521d\u59cb\u503c：\u7a7a\u7684StringBuilder
\n (sb, item) => sb.Append(item).Append("-"), \/\/ \u62fc\u63a5\u903b\u8f91：\u5143\u7d20+\u6a2a\u7ebf
\n sb => sb.Length > 0 ? sb.ToString(0, sb.Length – 1) : "" \/\/ \u79fb\u9664\u6700\u540e\u4e00\u4e2a\u6a2a\u7ebf
\n );<\/p>\n
Console.WriteLine(finalStr); \/\/ \u8f93\u51fa：1-2-3
\n }
\n}<\/p>\n
string.Concat() \u53ef\u76f4\u63a5\u62fc\u63a5\u53ef\u679a\u4e3e\u96c6\u5408\u7684\u6240\u6709\u5143\u7d20，\u4f46\u4e0d\u652f\u6301\u6307\u5b9a\u5206\u9694\u7b26，\u4ec5\u9002\u5408\u300c\u65e0\u5206\u9694\u7b26\u76f4\u63a5\u62fc\u63a5\u300d\u7684\u573a\u666f\u3002<\/p>\n
using System;
\nusing System.Collections.Generic;<\/p>\n
class Program
\n{
\n static void Main()
\n {
\n List<string> result = new List<string> { "a", "b", "c" };
\n string finalStr = string.Concat(result); \/\/ \u65e0\u5206\u9694\u7b26\u62fc\u63a5
\n Console.WriteLine(finalStr); \/\/ \u8f93\u51fa：abc
\n }
\n}<\/p>\n
\u65b9\u6cd5 1：\u4f7f\u7528 StringBuilder \u5faa\u73af\u62fc\u63a5（\u9ad8\u6027\u80fd\u81ea\u5b9a\u4e49）\u8fd9\u662f\u66ff\u4ee3 string.Join() \u6700\u5e38\u7528\u7684\u65b9\u6848，\u5c24\u5176\u9002\u5408\u9700\u8981\u81ea\u5b9a\u4e49\u62fc\u63a5\u903b\u8f91\u7684\u573a\u666f（\u6bd4\u5982\u7ed9\u5143\u7d20\u52a0\u524d\u7f00 \/ \u540e\u7f00\u3001\u8fc7\u6ee4\u7a7a\u503c），\u6027\u80fd\u8fdc\u4f18\u4e8e\u76f4\u63a5\u5b57\u7b26\u4e32\u62fc\u63a5\u3002\u4ee3\u7801\u793a\u4f8busing System;
\nusing System.Collections.Generic;
\nusing System.Text;class Progr<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,149,43],"topic":[],"class_list":["post-80596","post","type-post","status-publish","format-standard","hentry","category-server","tag-c","tag-windows","tag-43"],"yoast_head":"\n