在先秦诗歌创作年代研究领域 ,《诗经》创作年代被一再后延。实际上 ,先秦诗歌在创作成型之后往往有数百年的口传时期 ,其间形式稳定 ,增益也不多 ;它的整理成文则通常较晚。欲探明先秦诗歌创作年代真相 ,须形成完备而有系统的方法论 ,即综合地运用“内证法”和“体证法”展开研究 In the field of pre-Qin poetry writing, the era of “Book of Songs” was repeatedly postponed. In fact, pre-Qin poetry often has hundreds of years of oral tradition after its creation and shaping, during which its form is stable with little gain; its compilation and writing are usually later. To ascertain the truth of the era of poetry writing in the pre-Qin period, a complete and systematic methodology should be formed, that is, to study synthetically using “Internal Law” and “Physical Fitness Act”