Ruby基础知识-赋值和条件运算符

demo1:

a = 1 ;b = 2 + 3 #a=1 ,b=5
a ,b = b ,a #a=5 ,b=1
a = b = 1 + 2 + 3 #a=6 ,b=6
a = (b = 1 + 2) + 3 #a=6 ,b=3
x = 0 #x=0
a,b,c = x, (x+1), (x+2) #a=0 ,b=1,c=2