[-17]+59+[-37] -[+5]+[-9]+[-4]-[-9]
问题描述：
[-17]+59+[-37] -[+5]+[-9]+[-4]-[-9]
[-17]+59+[-37] -[+5]+[-9]+[-4]-[-9]
答
[-17]+59+[-37]
= -(17+37)+59
= -54+59
=5
-[+5]+[-9]+[-4]-[-9]
= -5-9-4+9
= -9