PORT2018的博客

things = ["mozzaralla","cinderella","salmonella"]def normalize(name): return name[0].upper() + name[1:].lower()def name_upper(name): return name[:].upper()def name_lower(name): return n...

一，验证三种列表赋值方法a = ['American','Braze','China','Japan','Chico','Harpo']b = ac = list(b)h = a.copy()i = a[:]print('a={},\nb={},\nc={},\nh={},\ni={},'.format(a,b,c,h,i))b[0] = 'Fine'a[3] = 'Korea'i...

a = ['American','Braze','China','Japan','Chico','Harpo']b = ['American','Braze','China','Japan','Chico','Harpo']c = a.sort()d = sorted(b)print('1st b={},\n 1st d={},\n'.format(b,d))e = b.sort(rev...

a_tuple = ('ready','fire','aim')b_tuple = "'ready','fire','aim'"a = list(a_tuple)b = list(a[0])print('a_tuple=',a_tuple)print('a=',a)print('b=',b)print('b[0]=',b[0])c = b_tuple.split(',')prin...

seconds_per_hour = 60*60seconds_per_day =24*seconds_per_houra = seconds_per_day/seconds_per_hourb = seconds_per_day//seconds_per_hourprint("a is float = {} ,b is int = {} ".format(a,b))输出a is floa...

# lambda 函数是用一条语句表达 匿名函数，可以用来代替小函数def edit_story(words,func): for word in words: print(func(word))stairs = ['thun','meow','thun','hiss']edit_story(stairs,lambda word :word.capitalize()+...

def run_something_with_args(func,*arg): print(*arg) print(arg[0]) return func(*arg)def sum_arg(*args): return sum(args)print(run_something_with_args(sum_arg,2,3,4,5))2 3 4 5214知识点，...

知识点：1，外层函数返回值是一个函数，外层函数为环境变量2，内层函数记忆外层函数调用的变量# Lexical closure 闭包 ,f1提供运行环境# 2018年6月25日def f1(x): def f2(y): return y**x return f2f3 = f1(3)print(f3(3))print(f3(4))print(f3(5))p...

安装了好几次VS CODE，每次配置都有问题，照着各类大神的配置，还是不成功，中午终于搞定了。参数被用在函数内部时，*可以将一组可变数量的参数合成参数值的元组。**将参数收集到一个字典中，参数的名字是字典的键，对应参数的值是字典的值def foo(x,y,z,*args,**kargs): print('x =:',x) print('y = ',y) print ('...

plo = {'a': 'Fine', 'c': 'd', 'e': 'f', 'h': 'g'}other = {'New':'island','Old':'Korea'}plo.update(other)save_plo = plo.copy()print(plo)print(save_plo)del save_plo['New']print(save_plo)print(pl...