It is expounded that the importance of Cauchy＇s integral formula in the theory of complex function, and it is described that the Cauchy integral formula promoted form,discusses its applications discusses Cauchy＇s integral formula.%文章阐述了Cauchy积分公式在复变函数论中占有重要地位，研究了Cauchy积分公式的几种推广形式，并讨论了Cauchy积分公式的一些应用问题。
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