python变量赋值小技巧

• 序列分解赋值

#python2/python3>>> testlist=['liuyi',24,'male']>>> name,age,sex=testlist>>> print name,age,sexliuyi 24 male-------------------------------->>> testtupe=('liuyi',24)>>> name,age=testtupe>>> print name ,ageliuyi 24-------------------------------->>> test='liuyi'>>> a,b,c,d,e=test>>> print a,b,c,d,el i u y i--------------------------------选取特定，忽略其他：>>> testlist=['liuyi',24,'male']>>> _,age,_=testlist>>> print age24

• 任意长度迭代对象分解赋值

#python3>>> testlist=[1,2,3,4,5,6,7,8,9]>>> first,*middle,last=testlist>>> print(middle)[2, 3, 4, 5, 6, 7, 8]>>> testtupe=('liuyi',24,'male',(10,8,1992))>>> name,*_,(*_,year)=testtupe>>> print(name,year)liuyi 1992