func fieldType(_ fieldno: Int) -> Int8
		
    The function fieldType() returns a type of a field by index.
    There are following types:
    
    - C - Character
    
- N - Numeric
    
- F - Float
    
- L - Logical
    
- D - Date
    
- M - Memo
    
- G - General
    
- T - DateTime
    
- I - Integer
    
- Y - Currency
    
- B - Double
    
- @ - TimeStamp
    
- O - Inverted Double
    
- V - Variant
    
- Q - VarBinary
    
- W - Blob
    
- + - Autoincrement
    
- 0 - System
    
{
    // your code
    for i = 0...dbf.fieldCount()-1 {
        print( dbf.fieldType( i ) )
    }
    // your code
}