Python-Grundlagen zum Erlernen von Codebedingungen und Schleifen

def func1():
    alist = ['Cathy','Terry','Joe','Health','Lucy']
    for i in  range(-1,-len(alist)-1,-1):
        print i,alist[i]
def func2():
    alist = ['Cathy','Terry','Joe','Health','Lucy']
    for i,name in enumerate(alist):
        print '%d %s' % (i,name)
import random
def func3():
    alist = ['Cathy','Terry','Joe','Health','Lucy']
    blist = [random.randint(i,10) for i in range(5)]
    for a,b in zip(alist,blist):
        print a,b
def func4():
    num = 4
    count = num / 2
    while count > 0:
        if num % count == 0:
            print count,'is the largest factor of',num
            break
        count -= 1
def showmaxfactor(num):
    count = num / 2
    while count > 1:
        if num % count == 0:
            print num,'largest factor is',count
            break
        count -= 1
        return True
    else:
        print num,'is prime'
        return False
def func5():
    for eachnum in range(10,60):
        showmaxfactor(eachnum)
def func6():
    alist = range(5)
    return map(lambda x: x ** 2,alist)
def func7():
    alist = [x ** 2 for x in range(5)]
    return alist
def func8():
    return filter(lambda x:x % 2,range(10))
def func9():
    return [x for x in range(10) if x % 2]
def func10():
    return [(x+1,y+1) for x in range(3) for y in range(5)]
import os
def func11():
    f = open('Client.py','r')
    print os.stat('Client.py').st_size
    print len([word for line in f for word in line.split(' ')])
    f.seek(0)
    print sum([len(word) for line in f for word in line.split(' ')])
def cols():
    yield 3
    yield 5
def func12():
    alist = [1,2,4,6]
    x = ((i,j) for i in alist for j in cols())
    for a in x:
        print a
def func13():
    f = open('Client.py','r')
    longest = 0
    alllines = f.readlines()
    f.close()
    for line in alllines:
        linelen = len(line.strip())
        if linelen > longest:
            longest = linelen
    return longest
def func14():
    f = open('Client.py','r')
    alllinelen = [len(x.strip()) for x in f]
    f.close()
    return max(alllinelen)
def func15():
    return max(len(x.strip()) for x in open('Client.py','r'))
def func16(x,y,z):
    alist = []
    for i in range(x,y+1,z):
        alist.append(i)
    return alist
def getfactors(num):
    for i in range(1,num+1):
        if num % i == 0:
            print i
def isperfect(num):
    sum = 0
    count = num / 2
    while count > 0:
        for i in range(1,count+1):
            if num % i == 0:
                sum += i
            count -= 1
    if sum == num:
        return True
    else:
        return False
def fibonacci(num):
    if num == 1:
        return [1]
    if num == 2:
        return [1,1]
    list = [1,1]
    if num > 2:
        for i in  range(3,num+1):
            list.append(list[-1]+list[-2])
        return list
def convert():
    start = int(raw_input(u'请输入起始值：'))
    end = int(raw_input(u'请输入结束值：'))
    for i in range(start,end+1):
        print "dec  bin  oct   hex"
        print '-' * 20
        print "%d  %s  %s  %s" % (i,bin(i),oct(i),hex(i))

Das Obige ist der Inhalt von Bedingungen und Schleifen für grundlegenden Python-Lerncode. Weitere verwandte Inhalte finden Sie auf der chinesischen PHP-Website (www.php.cn)!