用C＃中的数组的特定部分来做事

Question

I am not sure about foreach, maybe I need to create new "Bob array"?

string[] array = new string[] {"Andrew 11312", "23214 Bob", "123 John", "Bob 222"}
foreach (var i /*which contains "Bob" */ in array)
{do things}

Answer 1

You can use LINQ to achieve this.

foreach (var bob in array.Where(i => i.Contains("Bob")))
{
    // Do stuff with Bob ...
}

This requires the following namespace: using System.Linq;

If you need to modify the parts that contain "Bob" then you can do it with Select() .

 array = array.Select((i) =>
 {
     if (i.Contains("Bob"))
     {
         // Modify i, because it contains "Bob"
     }

     return i;
}).ToArray();

Answer 2

for (Int32 i = 0; i < array.Length; ++i)
{
    String s = array[i];

    if (!s.Contains("Bob"))
        continue;

    // do what you have to do...
}

Or, as well:

foreach (String s in array)
{
    if (!s.Contains("Bob"))
        continue;

    // do what you have to do...
}