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staticvoid Main(string[] args) { string s =""; //（1）字符访问（下标访问s[i]） s ="ABCD"; Console.WriteLine(s[0]); // 输出"A"; Console.WriteLine(s.Length... 阅读全文
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var content = new StreamReader(@"D:\json.txt", Encoding.Default).ReadToEnd(); 阅读全文
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using Newtonsoft.Json.Converters; using Newtonsoft.Json; IsoDateTimeConverter timeFormat = new IsoDateTimeConverter(); timeFormat.DateTimeFormat = "yyyy-MM-dd HH:mm:ss"; JsonConvert.SerializeObje... 阅读全文
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System.Diagnostics.Stopwatch stopwatch = new Stopwatch(); stopwatch.Start(); //执行代码+++ var d = stopwatch.Elapsed.Seconds; stopwatch.Stop(); 阅读全文
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private static char[] constant = { '0','1','2','3','4','5','6','7','8','9', 'A','B','C','D','E','F','G','H','I','J','K','L', 阅读全文