1. #!/usr/bin/python
    2. # -*- coding: UTF-8 -*-
    4. # 可写函数说明
    5. sum = lambda arg1, arg2: arg1 + arg2
    7. # 调用sum函数
    8. print "相加后的值为 : ", sum( 10, 20 )
    9. print "相加后的值为 : ", sum( 20, 20 )