#!/usr/bin/python

tup1 = ('physics', 'chemistry', 1997, 2000)
tup2 = (1, 2, 3, 4, 5, 6, 7 )
#tup1[0] = 100   修改元组，非法操作
#del tup1          删除元组，非法操作
print ("tup1[0]: ", tup1[0])
print ("tup2[1:5]: ", tup2[1:5])


print ('abc', -4.24e93, 18+6.6j, 'xyz')
x, y = 1, 2
print ("Value of x , y : ", x,y)
