查看字符串中的每个字符

Question

我想知道是否有人知道如何查看每个字符的字符串,然后将每个字符添加到新字符串？只是一个非常基本的例子,我可以添加ToUpper和ToLower验证等.

Answer 1

string foo = "hello world", bar = string.Empty;

foreach(char c in foo){
    bar += c;
}

使用StringBuilder:

string foo = "hello world";
StringBuilder bar = new StringBuilder();

foreach (char c in foo)
{
    bar.Append(c);
}

以下是签名String class:

[SerializableAttribute]
[ComVisibleAttribute(true)]
public sealed class String : IComparable, 
    ICloneable, IConvertible, IComparable<string>, IEnumerable<char>, 
    IEnumerable, IEquatable<string>

http://msdn.microsoft.com/en-us/library/system.string(v=vs.100).aspx

Answer 2

var output = ""; // or use StringBuilder
foreach(char c in text)
{
     output += c; // if or do with c what you need
}

...这就是你所需要的吗？
字符串是IEnumerable<char>