THE TWO TYPES OF FLARES IN THE ACTIVE REGION AR5395

1 Introduction In the 1970s, it had been known that two kinds of flares may be existed. One isthe "Compact flare", in EUV and X-ray, it is appeared as static brightenning coronalloop arches preexisted in lower level. Another kind of flare is the "two-ribbon flare", it isinitiated from the collapse of filament and characterized by the continued increasing