生日快乐python编程简单代码大全(python编写生日快乐代码)
Python高难度代码例子、Python最复杂代码例子
#IT教育# #IT# #程序员# #人工智能#
最近学习pytorch,看到下面的Python高难度代码例子和Python最复杂代码例子:
from google.colab import output as colab_output
from base64 import b64decode
from io import BytesIO
from pydub import AudioSegment
RECORD = """
const sleep = time = new Promise(resolve = setTimeout(resolve, time))
const b2text = blob = new Promise(resolve = {
const reader = new FileReader()
reader.onloadend = e = resolve(e.srcElement.result)
reader.readAsDataURL(blob)
})
var record = time = new Promise(async resolve = {
stream = await navigator.mediaDevices.getUserMedia({ audio: true })
recorder = new MediaRecorder(stream)
chunks = []
recorder.ondataavailable = e = chunks.push(e.data)
recorder.start()
await sleep(time)
recorder.onstop = async ()={
blob = new Blob(chunks)
text = await b2text(blob)
resolve(text)
}
recorder.stop()
})
"""
def record(seconds=1):
display(ipd.Javascript(RECORD))
print(f"Recording started for {seconds} seconds.")
s = colab_output.eval_js("record(%d)" % (seconds * 1000))
print("Recording ended.")
b = b64decode(s.split(",")[1])
fileformat = "wav"
filename = f"_audio.{fileformat}"
AudioSegment.from_file(BytesIO(b)).export(filename, format=fileformat)
return torchaudio.load(filename)
waveform, sample_rate = record()
print(f"Predicted: {predict(waveform)}.")
ipd.Audio(waveform.numpy(), rate=sample_rate)
js 的Promise函数对象编程,字符串javascript函数对象,IPython解释js对象,解释结果和python代码结合,IPython Shell显示非字符串数据,python音频使用IPython简单调用。
复杂Python模块下的多知识点结合代码,是Python高难度代码的体现。
Js的Promise理解为动态函数,比C++的类成员函数和全局函数这类静态形式的函数处理灵活,不过初学者理解起来麻烦。代码里sleep和b2text都代表一些处理函数,也就是几行代码,而不是数据。通常来讲,变量一般代表数据,但是这里代表了指令。
python编程,求大神,在线等,急
按照题目要求编写的Python程序如下
class Grade(object):
def __init__(self,grade):
self.grade=grade
class Class(object):
def __init__(self,bclass):
self.bclass=bclass
class Teacher(Grade,Class):
def __init__(self,grade,bclass,subject,name):
Grade.__init__(self,grade)
Class.__init__(self,bclass)
self.subject=subject
self.name=name
def run(self):
print("老师的姓名%s,年级%s,班级%s,学科%s" %(self.name,self.grade,self.bclass,self.subject))
class Student(Grade,Class):
def __init__(self,grade,bclass,age,name):
Grade.__init__(self,grade)
Class.__init__(self,bclass)
self.age=age
self.name=name
def run(self):
print("学生的姓名%s,年龄%d,年级%s,班级%s" %(self.name,self.age,self.grade,self.bclass))
T=Teacher('五','3','数学','张三')
S=Student('四','2',10,'李四')
val=input("请输入打印老师(T),学生(S):")
if val=='T':
T.run()
else:
S.run()
源代码(注意源代码的缩进)
求简洁优美的python代码例子、片段、参考资料
建议你去看一本书:《计算机程序的构造与解释》。里面用的语言是Scheme,一种Lisp的方言。通过这本书学习程序的抽象、封装,以及重要的函数式编程思想。等看完这本书以后,你在来写写Python代码,就知道如何让其简洁直观而又不失其可读性了。
同时,要让代码写得简洁,你也得熟悉Python本身,充分挖掘其能力。Python内建的几个高阶函数:map,reduce,filter,enumerate等等,lambda表达式,zip函数,以及标准库里强大的itertools、functools模块,都是函数式编程的利器。此外Python本身提供了许多非常好的语法糖衣,例如装饰器、生成器、*args和**kwargs参数、列表推导等等,也是简化代码的有效手段。还有,Python有着强大的库。多参考官方的文档了解其原理和细节,我相信你也能写出高效简洁的代码的。
其实代码的简洁没有什么捷径,它要求你了解你要解决的问题,所使用的语言和工具,相关的算法或流程。这些都得靠你自己不断地练习和持续改进代码,不断地专研问题和学习知识。加油吧,少年!
楼下让你参考PEP 20,其实不用去查,标准库里的this模块就是它(试试import this):The Zen of Python(Python之禅)。它就是一段话:
s='''
The?Zen?of?Python,?by?Tim?Peters
Beautiful?is?better?than?ugly.
Explicit?is?better?than?implicit.
Simple?is?better?than?complex.
Complex?is?better?than?complicated.
Flat?is?better?than?nested.
Sparse?is?better?than?dense.
Readability?counts.
Special?cases?aren't?special?enough?to?break?the?rules.
Although?practicality?beats?purity.
Errors?should?never?pass?silently.
Unless?explicitly?silenced.
In?the?face?of?ambiguity,?refuse?the?temptation?to?guess.
There?should?be?one--?and?preferably?only?one?--obvious?way?to?do?it.
Although?that?way?may?not?be?obvious?at?first?unless?you're?Dutch.
Now?is?better?than?never.
Although?never?is?often?better?than?*right*?now.
If?the?implementation?is?hard?to?explain,?it's?a?bad?idea.
If?the?implementation?is?easy?to?explain,?it?may?be?a?good?idea.
Namespaces?are?one?honking?great?idea?--?let's?do?more?of?those!
'''
让我们来做个小游戏吧:统计上面这段话的单词总数目,以及各个单词的数量(不区分大小写),然后按字典顺序输出每个单词出现的次数。要求,例如it's和you're等要拆分成it is和you are。你会怎么写代码呢?如何保持简洁呢?
下面是我的参考答案,争取比我写的更简洁吧~
import?re
p?=?re.compile("(\w+)('s|'re|n't)?")
wc?=?{}
tail_map?=?{?"'s"?:?'is',?"'re"?:?'are',?"n't":?'not'}
for?m?in?re.finditer(p,?s):
????word?=?m.group(1).lower()???????????????????#?Get?the?word?in?lower?case
????wc[word]?=?wc.get(word,?0)?+?1??????????????#?Increase?word?count
????tail?=?m.group(2)???????????????????????????#?Get?the?word?tail
????if?tail?is?not?None:????????????????????????#?If?a?word?tail?exists,
????????tail?=?tail_map[tail]???????????????????#?map?it?to?its?full?form
????????wc[tail]?=?wc.get(tail,?0)+1????????????#?Increase?word?count
print?('Total?word?count:?%d'%sum(wc.values()))?#?Output?the?total?count
max_len?=?max(map(len,?wc.keys()))??????????????#?Calculate?the?max?length?of?words?for?pretty?printing
for?w?in?sorted(wc.keys()):?????????????????????#?Sort?the?words
????print?('%*s?=?%d'%(max_len,?w,?wc[w]))?????#?Output
python代码怎么写?
python3.6代码:
cnt=0
whileTrue:
print("请输入分数:")
i=input()
if(noti):
print("输入有误!")
print("学生人数:"+str(cnt))
int i;
min = max = score[0];
avg = 0;
for(i=0; in; i++)
baiavg += score[i];
if(score[i] max)?
规范的代码:
Python采用强制缩进的方式使得代码具有较好可读性。而Python语言写的程序不需要编译成二进制代码。Python的作者设计限制性很强的语法,使得不好的编程习惯(例如if语句的下一行不向右缩进)都不能通过编译。其中很重要的一项就是Python的缩进规则。
一个和其他大多数语言(如C)的区别就是,一个模块的界限,完全是由每行的首字符在这一行的位置来决定(而C语言是用一对花括号{}来明确的定出模块的边界,与字符的位置毫无关系)。