C#中的StringBuilder.Chars []属性
StringBuilder.Chars[]属性在此实例中获取或设置字符在指定字符位置。
语法
语法如下-
public char this[int index] { get; set; }在上方，索引参数是字符的位置。
示例
现在让我们看一个例子-
using System;
using System.Text;
public class Demo {
public static void Main() {
StringBuilder strBuilder = new StringBuilder("ghgh78hkjj");
int num = 0;
for (int i = 0; i < strBuilder.Length; i++) {
char c = strBuilder[i];
if (Char.IsDigit(c))
num++;
}
Console.WriteLine("String = "+strBuilder);
Console.WriteLine("Numbers in the string = "+num);
}
}输出结果
这将产生以下输出-
String = ghgh78hkjj Numbers in the string = 2
示例
现在让我们来看另一个例子-
using System;
using System.Text;
public class Demo {
public static void Main() {
StringBuilder strBuilder = new StringBuilder("ghgh78hkjj");
char c = strBuilder[3];
Console.WriteLine("String = "+strBuilder);
Console.WriteLine("Character = "+c);
}
}输出结果
这将产生以下输出-
String = ghgh78hkjj Character = h