关于积分上限函数的几个定理

A Few Theorem Regarding Integral Upper Limit Function

变上限积分是积分学的一个重要理论 ,其运算结果仍以函数的形式体现 .研究这类函数 ,得出几个颇有理论意义的定理 .

Integral that upper limit of integral is variable is a important theory,results of operation is function forma after all.Research this kind of function,get a few theorem.