代码

for( int i = 0 ; i < array.Length - 1 ; i++ ) {
for( int j = 0 ; j < array.Length - 1 ; j++ ) {
if( array[ j ] < array[ j + 1 ] ) {
int temp = array[ j ];
array[ j ] = array[ j + 1 ];
array[ j + 1 ] = temp;
}
}
}
string re = string.Join( ",", Array.ConvertAll<int, string>( array, new Converter<int, string>( x => x.ToString() ) ) );
MessageBox.Show( re );