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基于proteus的计算器C程序，可是实现加减乘除各种功能，大家可以多尝试-Based the proteus calculator C program, but the realization of addition, subtraction, multiplication and division various functions, we can try to

基于51单片机的计算器代码，包括proteus仿真文件-Based on 51 single-chip calculator code, including proteus simulation file