accomplishment and attempted theft of scientific criteria for the distinction is whether there is constitutive elements of crime, not to the standard theory of a single theory.
盗窃罪既遂与未遂的科学区分标準是是否具备犯罪构成要件,而不能采取单一学说理论为标準。
the author briefly introduces the standard of attempted and completed crime, and then further briefly introduce theories on completed and attempted theft both chinese and foreignor' s.