In this paper, starting from order exchangetheorem of repeated limits, we synthetically discuss the above problems in order to understand them deeply.
我们从累次极限换序定理出发来综合讨论分析运算换序定理，以便对这类问题有较为深刻的认识。
2
By using the limits of functions and the exchange limit theorem, we considered the relationship between the double limit of function with two variables and its repeated limits.