基于labview的简易计算器，能够实现加减乘除，开方求导等基本运算-Based on LabVIEW simple calculator, addition, subtraction, multiplication and division, square root derivation and other basic operations

实现基本运算，能正确、实时显示输入和计算结果-Implement basic operations, correctly, real-time display input and calculation results

实现了多位数加减乘除基本运算，并且可以删减输入字符(To achieve the basic operation and can cut down the number add, subtract, multiply and divide the input character.)