功能强大的汇编语言大数 四则混合运算器，可以计算一百位数字以内的加减乘除括号混合运算，如100000000000000000-（100000000000000*999999999999999999999999）还有其他复杂的查错功能-Powerful assembly language, four hybrid arithmetic unit of large numbers can be calculated within plus or minus a hundred figures in parentheses mixed multiplication and division operations, such as 100000000000000000- (100000000000000* 999999999999999999999999) there are other features of complex error checking