在 C# 中清除 StringBuilder
csharpprogrammingserver side programming更新于 2025/9/17 18:19:00
要清除 StringBuilder，请使用 Clear() 方法。
假设我们已设置以下 StringBuilder −
string[] myStr = { "One", "Two", "Three", "Four" };
StringBuilder str = new StringBuilder("We will print now...").AppendLine();
现在，使用 Clear() 方法清除 StringBuilder −
str.Clear();
让我们看看完整的代码 −
示例
using System;
使用 System.Text;
public class Demo {
public static void Main() {
// 字符串数组
string[] myStr = { "One", "Two", "Three", "Four" };
StringBuilder str = new StringBuilder("We will print now...").AppendLine();
// foreach 循环附加元素
foreach (string item in myStr) {
str.Append(item).AppendLine();
}
Console.WriteLine(str.ToString());
int len = str.Length;
Console.WriteLine("Length: "+len);
// clearing
str.Clear();
int len2 = str.Length;
Console.WriteLine("Length after using Clear: "+len2);
Console.ReadLine();
}
}
输出
We will print now... One Two Three Four Length: 40 Length after using Clear: 0
