“九叶诗人”中,穆旦与杜运燮相识最早、相交最久、相知最深。同窗西南联大外文系,同在联大文艺社团开始现代诗的“探险”,同赴滇缅战场与日本侵略者殊死战斗;同历战后的颠沛流离,又同白海外归来;由于不同的原因几乎是在同时终止了诗歌创作, “Nine Leaves Poets”, Mu Dan and Du Yunxie acquaintance the earliest, the longest intersect, with the deepest. At the same time, with the Department of Foreign Languages ​​of the Southwest United University and the “Adventure” of modern poetry started at the literary society of the UN General Assembly, they went on to fight with the Japanese invaders in the battlefields of Burma and Burma. After the war, The reason is almost at the same time the termination of poetry,