阅读下面代码，说法正确的是？

def transform(myls):
    tmp_ls = []
    for num in myls:
        if num > 0 and num % 2 == 0:
            tmp_ls.append(num ** 2)
        elif num > 0 and num % 2 != 0:
            tmp_ls.append(num + 3)
        elif num < 0:
            tmp_ls.append(num * -1)
    return tmp_ls
    
ls = [-2,2,3,-4,0,5,6]
print(transform(ls))