Question

StringBuilder.Append()用法？

举个简单的例子？

Answer 1

StringBuilder sb=new StringBuilder(); //命名空间 System.Text;
string str="123";
sb.Append(str); //添加数据(数据必须可为任何类型 string,int,bool…皆可)
sb.Append("456");
Response.Write(sb.ToString()); //必须以string型输出,输出结果为 123456

Answer 2

using System;
using System.Data;
using System.Text;

class Test
{
static void Main()
{
StringBuilder sb = new StringBuilder();
sb.Append("aaa");
sb.Append("bbb");
Console.WriteLine(sb.ToString());
Console.ReadLine();
}
}

Answer 3

StringBuilder sb = new StringBuilder();
sb.Append("a");
sb.Append("b");
Console.WriteLine(sb);

String str = "a";
str += "b";
Console.WriteLine(str);

Answer 4

StringBuilder sb = new StringBuilder();
sb.Append("a");
sb.Append("b");
sb.Append("CD");

sb.Tostring = "abCD"