通过运用VB中若干内部函数的文本框，对在程序运行过程中动态地输入函数表达式，并求得函数值和梯度的可行性进行了探讨。
The article discusses how to use some inner function and textbox about VB to dynamic input expression of functions when running program, finally getting the result of function and grades.
语言按照形式，意义和功能的三个角度进行分析，法律文本的模糊性主要体现在它所要表达的意义和功能上。
Language could be analyzed by its form, meaning, and function. The fuzziness in the legal text mainly shows in its function and meaning.
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