国家自然科学基金51209024;国家社会科学基金13BGL009;四川省社科项目SC15TJ019,SC14C007;四川省教育厅项目No.15ZA0192,15ZA0189 Supported by the National Natural Science Foundation of China51209024;the National Planning Office of Philosophy and Social Science13BGL009;the Social Science Project of Sichuan ProvinceSC15TJ019,SC14C007;the Project of Education Department of Sichuan Province15ZA0192,15ZA0189