private string Fibonacci(int index)
{
string result = string.Empty;
if (index <= 0)
{
throw new ArgumentException("无效的索引值");
}
if (index2Value.ContainsKey(index))
{
result = index2Value[index];
}
if (!string.IsNullOrEmpty(result))
{
return(result);
}
if (index <= 2)
{
result = "1";
}
else
{
result = bigNumber.Add(Fibonacci(index - 1), Fibonacci(index - 2));
}
index2Value.Add(index, result);
return(result);
}
public void AddTest5()
{
BigNumber a = new BigNumber("199");
BigNumber b = new BigNumber("1");
BigNumber actual = a.Add(b);
Assert.AreEqual("200", actual.ToString());
}
public void AddTest3()
{
BigNumber a = new BigNumber("12");
BigNumber b = new BigNumber("123");
BigNumber actual = a.Add(b);
Assert.AreEqual("135", actual.ToString());
}
public void AddTest()
{
BigNumber a = new BigNumber("123456");
BigNumber b = new BigNumber("654312");
BigNumber actual = a.Add(b);
Assert.AreEqual("777768", actual.ToString());
}
public void Do()
{
string number = "1234567890";
BigNumber bigNum = new BigNumber(number);
string temp = bigNum.Add("5", "8");
Console.WriteLine(bigNum.ToString());
string s1 = "\"level\"";
Console.WriteLine(s1);
Console.WriteLine(s1.Replace("\"", ""));
bool good = new bool();
Console.WriteLine(good);
string guid = Guid.NewGuid().ToString();
Console.WriteLine(guid);
return;
TestAnalyseFileName();
return;
List <Student> students = new List <Student>();
students.Add(new Student {
Name = "lianzeyang", Gender = "male"
});
students.Add(new Student {
Name = "zhangsan", Gender = "male"
});
students.Add(new Student {
Name = "lisi", Gender = "male"
});
students.Add(new Student {
Name = "limei", Gender = "female"
});
students.Add(new Student {
Name = "wangfang", Gender = "female"
});
var aggregatedData = students.GroupBy(item => item.Gender);
foreach (var data in aggregatedData)
{
Console.WriteLine(data.Key);
foreach (var student in data)
{
Console.WriteLine(student.Name);
}
}
string response = "\\\"0000031522\"";
Console.WriteLine(response);
response = response.Replace("\\\"", "");
Console.WriteLine(response);
string mobilePhone = "13127571386";
string mobilePhoneToBeShown = string.Empty;
mobilePhoneToBeShown = string.Format("{0}****{1}", mobilePhone.Substring(0, 3), mobilePhone.Substring(7, 4));
Console.WriteLine(mobilePhoneToBeShown);
string testString = "\r\nhello word\r\n";
Console.WriteLine(testString);
char[] trimedChars = new char[] { '\r', '\n' };
Console.WriteLine(testString.Trim(trimedChars));
string fullFileName = "yyyyMMdd_waterfee.txt";
string[] fileNameWithExtra = fullFileName.Split('.');
string fileName = fileNameWithExtra[0];
Console.WriteLine(fileName);
string[] dateWithType = fileName.Split('_');
string type = dateWithType[1];
Console.WriteLine(type);
Console.WriteLine(fullFileName.Substring(fullFileName.IndexOf('_') + 1, fullFileName.IndexOf('.') - fullFileName.IndexOf('_') - 1));
List <int> ids = new List <int>();
string joinedIds = string.Join(",", ids);
int year = DateTime.Now.Year;
int month = 11;
int day = 31;
Console.WriteLine(string.Format("{0}年{1}月{2}日", DateNumber2CHN(year), DateNumber2CHN(month), DateNumber2CHN(day)));
Console.WriteLine(Guid.NewGuid().ToString().Replace("-", ""));
}
