[英]How to search for a word in a string and then get the numbers after this word?
喜歡:
"Name: Daniel --- Phone Number: 3128623432 --- Age: 12 --- Occupation: Student"
如何獲得“年齡”之后的信息? 我只想要數字。 (他的年齡)
您能否嘗試以下概念的完整代碼:
string strAge;
string myString = "Name: Daniel --- Phone Number: 3128623432 --- Age: 12 --- Occupation: Student";
int posString = myString.IndexOf("Age: ");
if (posString >0)
{
strAge = myString.Substring(posString);
}
健壯的方法是獲取一些正則表達式:)盡管...
假設您的年齡采用以下格式Age: value
string st = "Name: Daniel --- Phone Number: 3128623432 --- Age: 12 --- Occupation: Student";
//Following Expression finds a match for a number value followed by `Age:`
System.Text.RegularExpressions.Match mt = System.Text.RegularExpressions.Regex.Match(st, @"Age\: \d+");
int age=0; string ans = "";
if(mt.ToString().Length>0)
{
ans = mt.ToString().Split(' ')[1]);
age = Convert.ToInt32(ans);
MessageBox.Show("Age = " + age);
}
else
MessageBox.Show("No Value found for age");
MessgeBox向您顯示您的字符串值(如果找到)。
實際上,您有數據,可以很容易地將其表示為Dictionary<string, string>
類型的Dictionary<string, string>
:
var s = "Name: Daniel --- Phone Number: 3128623432 --- Age: 12 --- Occupation: Student";
var dictionary = s.Split(new string[] { "---" }, StringSplitOptions.None)
.Select(x => x.Split(':'))
.ToDictionary(x => x[0].Trim(), x => x[1].Trim());
現在,您可以從輸入字符串中獲取任何值:
string occupation = dictionary["Occupation"];
int age = Int32.Parse(dictionary["Age"]);
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