zip函数

将可迭代对象，打包成一个个元祖

a=[1,2,3,4]
b=[11,22,33,44]
v=zip(a,b)
print(*zip(v))  #解压
((1, 11),) ((2, 22),) ((3, 33),) ((4, 44),)

for i,j in zip(a,b):
    print("%d * %d =%d"%(i,j,i*j))
1 * 11 =11
2 * 22 =44
3 * 33 =99
4 * 44 =176