0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9的前面加加减乘除(每个运算符号至少用一次(),使结果为0

楼主的问题不够清楚,是算术题还是编程题目,如果是编程的题目想要用什么软件编,你都没说,怎么回答啊?

1 : 0.2 + 0.3 + 0.4 + 0.5 - 0.6 - 0.7 + 0.8 - 0.9 = 0
2 : 0.2 - 0.3 + 0.4 - 0.5 - 0.6 + 0.7 - 0.8 + 0.9 = 0
3 : 0.2 - 0.3 - 0.4 + 0.5 + 0.6 - 0.7 - 0.8 + 0.9 = 0
4 : 0.2 - 0.3 - 0.4 + 0.5 - 0.6 + 0.7 + 0.8 - 0.9 = 0
5 : 0.2 * 0.3 + 0.4 / 0.5 + 0.6 - 0.7 * 0.8 - 0.9 = 0
Press any key to continue

(0.2+(0.3*0.4)/(0.5*0.6))-0.7-0.8+0.9

零乘以任何数都得零