No. Starch and flour are two completely different things, and flour cannot achieve the effect of thickening. Tapioca starch, corn starch, mung bean starch, water chestnut starch, lotus root starch, etc. can be used for thickening. Flour is wheat and other grains ground into powder after peeling, and starch is a glucose powder extracted from plants. The two have similar appearances, but are different in essence.