面对日本帝国主义的日益进逼,张学良毅然易帜,明确反日。但张学良对日的侵略认识不足,使日军趁机侵占了东北,发生九·一八事变,被迫下野。随着国难家仇的加深,张学良在对日认识上逐渐醒悟并发生根本转变,形成了其对日彻底抵抗的态度,终以实际行动联合国内抗日力量,发动西安事变,促成了抗日民族统一战线。 In the face of the increasingly impending Japanese imperialism, Zhang Xueliang resolutely adopted the banner and clearly opposed Japan. However, Zhang Xueliang’s lack of understanding of Japan’s aggression led the Japanese army to seize the opportunity of taking over the northeast and the September 18 Incident took place. With the deepening of the national crisis, Zhang Xueliang gradually realized and realized a fundamental change in his understanding of Japan and formed his attitude of completely resisting Japan. Finally, he took practical actions to unify the anti-Japanese forces in the United Nations, launched the Xi’an Incident, and contributed to the anti-Japanese national united front .