MVC08
2021-04-20 13:27
标签：接口 lis names div inter write 字符串 重载 mes 1. c# 索引器（indexer） 可为get、set 设置修饰符，一般set为private，get为public 3. 基于接口的索引器与代码强壮性 在接口内也可以新建索引器。 下方 ------------恢复内容结束------------ MVC08 标签：接口 lis names div inter write 字符串 重载 mes 原文地址：https://www.cnblogs.com/Tanqurey/p/12259551.htmlusing System;
using System.IO;
namespace IO
{
class Program
{
private string[] nameList = new string[10];
static void Main(string[] args)
{
var names = new IndexedNames();
names[0] = "hi";
Console.WriteLine(names[0]);
Console.WriteLine(names[1]);
Console.WriteLine(names[11]);
}
class IndexedNames
{
private string[] nameList = new string[10];
public IndexedNames()
{
for (int i = 0; i )
{
nameList[i] = "N/A";
}
}
public string this[int index]
{
get
{
string tmp;
if (index >= 0 && index nameList.Length)
{
tmp = nameList[index];
}
else
{
tmp = "index is empty";
}
return tmp;
}
set
{
if(index >= 0 && index nameList.Length)
{
nameList[index] = value;
}
}
}
}
}
}
using System;
using System.IO;
namespace IO
{
class Program
{
private string[] nameList = new string[10];
static void Main(string[] args)
{
var names = new IndexedNames();
names[0] = "hi";
Console.WriteLine(names[0]);
Console.WriteLine(names[1]);
Console.WriteLine(names[11]);
var testStr = "hi";
Console.WriteLine(names[testStr]);
}
class IndexedNames
{
private string[] nameList = new string[10];
public IndexedNames()
{
for (int i = 0; i )
{
nameList[i] = "N/A";
}
}
public string this[int index]
{
get
{
string tmp;
if (index >= 0 && index nameList.Length)
{
tmp = nameList[index];
}
else
{
tmp = "index is empty";
}
return tmp;
}
set
{
if(index >= 0 && index nameList.Length)
{
nameList[index] = value;
}
}
}
// 以字符串为索引，返回该字符串在数组中的整型索引，重载了索引器
public int this[string name]
{
get
{
int i = 0;
while(i nameList.Length)
{
if(nameList[i] == name)
{
return i;
}
}
return -1;
}
}
}
}
}
using System;
using System.IO;
namespace IO
{
class Program
{
private string[] nameList = new string[10];
static void Main(string[] args)
{
var names = new IndexedNames();
names[0] = "hi";
Console.WriteLine(names[0]);
Console.WriteLine(names[1]);
Console.WriteLine(names[11]);
var testStr = "hi";
Console.WriteLine(names[testStr]);
}
}
class IndexedNames
{
private string[] nameList = new string[10];
public IndexedNames()
{
for (int i = 0; i )
{
nameList[i] = "N/A";
}
}
public string this[int index]
{
get
{
string tmp;
if (index >= 0 && index nameList.Length)
{
tmp = nameList[index];
}
else
{
tmp = "index is empty";
}
return tmp;
}
set
{
if (index >= 0 && index nameList.Length)
{
nameList[index] = value;
}
}
}
// 以字符串为索引，返回该字符串在数组中的整型索引
public int this[string name]
{
get
{
int i = 0;
while (i nameList.Length)
{
if (nameList[i] == name)
{
return i;
}
}
return -1;
}
}
}
public interface ISomeInterface
{
int this[int index]
{
get;
set;
}
}
class IndexerClass : ISomeInterface
{
private int[] arr = new int[100];
public int this[int index]
{
get
{
return arr[index];
}
set
{
arr[index] = value;
}
}
}
}
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