The loop invariant embodies essential characteristics of loop program and has an important role to play in design, proof and derivation of algorithmic program.
循环不变式体现了循环程序的本质特征，在算法程序的开发、证明和推导中具有十分重要的作用。
Data refinement is hard to deal with in a refinement tool compared with ordinary algorithmic refinement, since data refinement usually has to be done on a large program component at once.
由于数据精化需要针对更大的程序块，所以，它比一般的算法精化更加复杂。
Data refinement is hard to deal with in a refinement tool compared with ordinary algorithmic refinement, since data refinement usually has to be done on a large program component at once.
由于数据精化需要针对更大的程序块，所以，它比一般的算法精化更加复杂。
应用推荐