arrylist与Strng[]

ArrayList 与 string[] 的转换

Method1：

public string[] ToArray
ArrayList list = new ArrayList();
list.Add( "aaa" );
list.Add( "bbb" );

//转换成数组
string[] arrString = (string[])list.ToArray( typeof( string ) ) ;

public string[] ToArray
ArrayList list = new ArrayList();
list.Add( "aaa" );
list.Add( "bbb" );

//转换成数组
string[] arrString = (string[])list.ToArray( typeof( string ) ) ;

 

Method2：

ArrayList list = new ArrayList();
list.Add( "aaa" );
list.Add( "bbb" );

//转换成数组
string[] arrString = new string[list.Count];
for( int i = 0 ; i < list.Count ; i ++ ){
 arrString[i] = list[i].ToString();
}

ArrayList list = new ArrayList();
list.Add( "aaa" );
list.Add( "bbb" );

//转换成数组
string[] arrString = new string[list.Count];
for( int i = 0 ; i < list.Count ; i ++ ){
 arrString[i] = list[i].ToString();
}

 

将string转换成ArrayList类型：

string str="1,2,3,4,5";
ArrayList b = new ArrayList( str.Split(',') ) ;