3-2:
def do_twice(f, s1): f(s1) f(s1) def print_spam(s2): print(s2) def print_twice(s3): print(s3) print(s3) def do_four(f1,f2,s4): f1(f2,s4) f1(f2,s4) do_twice(print_twice, ‘aaa‘) do_four(do_twice, print_spam, ‘spam‘)
3-3.1:
#!/usr/bin/env python3 # -*- coding: utf-8 -*- def push1(): print(‘+ - - - -‘, end = ‘ ‘) # 默认情况下print会自动换行,可以在结尾打印一个空格改变这一行为 def push2(): print(‘| ‘, end = ‘ ‘) def do_twice(f): f() f() def do_four(f): f() f() f() f() def row1(): do_twice(push1) print(‘+‘) def row2(): do_twice(push2) print(‘|‘) row1() do_four(row2) row1() do_four(row2) row1()
原文地址:https://www.cnblogs.com/chunzhen/p/8536386.html
时间: 2024-10-12 22:12:53