Triazole [4,5-d] pyrimidine compound of crystal habit and its preparation method and application

Disclose formula (I) compound of a variety of crystal habits and preparation method thereof and medical usage.The compound of the different crystal habits of offer has the improved following property of one or more: crystallinity, solubility, dissolution rate, particle shape, thermodynamics and mechanical stability, hygroscopicity, mobility, compressibility and apparent density.