Séquence de code d'apprentissage de base Python

str1 = 'abced'
for i in range(-1, -len(str1), -1) + [None]:
    print str1[:i]

s, t = 'abc', 'def'
print zip(s, t)

for i, t in enumerate(str1):
    print i, t

print isinstance('foo', str)
import string

def checkid():
    alphas = string.letters + '_'
    nums = string.digits
    check = raw_input('input id for check:')
    if len(check) > 1:
        if check[0] not in alphas:
            print "invaid id"
        else:
            for o in check[1:]:
                if o not in alphas + nums:
                    print "invaid id"
                    break
                else:
                    print("valid id")

def func1():
    alist = ["xx3", "1tc"]
    for i, s in enumerate(alist):
        print i, s

def func2():
    alist = ["hello", "come", "12"]
    blist = ["welcome", "what", 15]
    for i, s in zip(alist,blist):
        print i, s

def func3():
    alist = []
    anum = raw_input('input>>').strip()
    for i in anum:
        alist.append(i)
    alist.sort()
    alist.reverse()
    return alist

def func4():
    alist = []
    while True:

        num = int(raw_input('input >>').strip())
        if num == 0:
            break
        alist.append(num)
    alist.sort()
    return alist

import keyword

def func5():
    alphas = string.letters
    nums = string.digits
    print 'the id check!'
    str1 = raw_input('input id:')
    if str1 in keyword.kwlist:
        print 'invalid,it is a keyword!'
    else:
        if str1[0] not in alphas + '_':
            print 'invalid,first symbol must be alpha or underline!'
        else:
            for c in str1[1:]:
                if c not in alphas + nums:
                    print 'invalid,symbol must be alpha or numbers!'

            print 'valid id!'

def showstr():
    strs = raw_input('input strings::')
    if len(strs) == 0:
        return False
    elif len(strs) == 1:
        print strs
        return True
    for i, j in enumerate(strs):
        if i == 0 and len(strs) != 1:
            print j, strs[i+1]
        elif i != 0 and i == (len(strs) - 1):
            print strs[i-1]
        else:
            print strs[i-1], j, strs[i+1]
    return True

def cmpstr():
    str1 = raw_input('input string1>')
    str2 = raw_input('input string2>')
    if len(str1) != len(str2):
        return False
    for i, j in enumerate(str1):
        if ord(j) - ord(str2[i]) != 0:
            return False
    return True

def func6():
    str1 = raw_input('input your strings:>>')
    i = 0
    j = len(str1) - 1
    while str1[i] == ' ':
        i = i + 1
    while str1[j] == ' ':
        j = j - 1
    str1 = str1[i:j+1]
    print str1

def func7():
    alist = ["zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"]
    nlist = ''
    while True:
        number = raw_input('input a number(0~1000):')
        if len(number) == 0:
            break
        else:
            number = str(number)
            for i in number:
                nlist += alist[int(i)] + '-'
            return nlist[0:-1]

def func8():
    minutes = int(raw_input('input minutes:'))
    minu = minutes % 60
    hour = minutes / 60
    print "%d:%d" % (hour, minu)

def func9():
    str1 = raw_input('input string:>>')
    return str1.swapcase()

def func10():
    mystr = raw_input('enter a number:')
    number = int(mystr)
    alist = range(1, number+1)
    print 'before:','alist'
    i = 0
    while i < len(alist):
        if number % alist[i] == 0:
            del alist[i]
        i = i + 1
    print &#39;after&#39;,alist

def findchr(str1, char):
    lchar = len(char)
    if char not in str1:
        return -1
    for i, j in enumerate(str1):
        if j in char:
            if str1[i:i+lchar] == char:
                return i
    return -1

def rfindchr(str1, char):
    lchar = len(char)
    lstring = len(str1)
    if char not in str1:
        return -1
    for i, j in enumerate(str1):
        if j in char:
            if str1[lstring-1-i:lstring-1-i+lchar] == char:
                return i
    return -1

def subchr(string1, origchar, newchar):
    import string
    return string.replace(string1, origchar, newchar)

def atoc(strparm):
    cindex = strparm.rfind(&#39;-&#39;)
    if cindex <= 0:
        cindex = strparm.rfind(&#39;+&#39;)
    if cindex > 0:
        real = float(strparm[0:cindex])
        compl = float(strparm[cindex:-1])
    return complex(real, compl)

import random

def func11():
    alist = ["paper", "shears", "stone"]
    g = int(raw_input(&#39;input 1:paper,2:shears,3:stone:>&#39;)) - 1
    print "your come %s" % alist[g]
    r = random.choice([0, 1, 2])
    print "him come %s" % alist[r]
    if g == r:
        print &#39;nobody win!&#39;
    # r win
    if (r > g and g - r != -2) or r - g == -2:
        print &#39;him win!&#39;
    # g win
    else:
        print &#39;i win!&#39;

import datetime

def isleapyear(year):
    if (year % 4 == 0) and (year % 100 != 0) or (year % 4 == 0) and (year % 100 == 0):
        return True
    else:
        return False

def func12():
    month = {1:31,2:28,3:31,4:30,5:31,6:30,7:31,8:31,9:30,10:31,11:30,12:31}
    while True:
        sdate = raw_input(&#39;input start date[dd/mm/yyyy]:&#39;).split(&#39;/&#39;)
        dd, mm, yyyy = 0, 1, 2
        sdate[dd],sdate[mm],sdate[yyyy] =int(sdate[0]),int(sdate[1]),int(sdate[2])
        if sdate[mm] > 12 or sdate[mm] < 1:
            continue
        if isleapyear(sdate[yyyy]):
            month[2] = 29
        if sdate[dd] < 1 or sdate[dd] > month[sdate[mm]]:
            continue
        break
    while True:
        edate = raw_input(&#39;input end date[dd/mm/yyyy]:&#39;).split(&#39;/&#39;)
        edate[dd],edate[mm],edate[yyyy] =int(edate[0]),int(edate[1]),int(edate[2])
        if edate[mm] > 12 or edate[mm] < 1:
            continue
        if isleapyear(sdate[yyyy]):
            month[2] = 29
        if edate[dd] < 1 or edate[dd] > month[edate[mm]]:
            continue
        break

Ce qui précède est le contenu de la séquence de codes d'apprentissage de base de Python. Pour plus de contenu connexe, veuillez faire attention au site Web PHP chinois (www.php.cn) !