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x[0:10] = y y = x[10:20]

y.sort(reverse=True) x[10:20] = y print x

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2.7 ¼ÙÉèÓÐÁбía = ['name','age','sex']ºÍb = ['Dong',38,'Male']£¬ÇëʹÓÃÒ»¸öÓï¾ä½«ÕâÁ½¸öÁбíµÄÄÚÈÝת»»Îª×ֵ䣬²¢ÇÒÒÔÁбíaÖеÄÔªËØÎª¼ü£¬ÒÔÁбíbÖеÄÔªËØÎªÖµ£¬Õâ¸öÓï¾ä¿ÉÒÔдΪ c = dict(zip(a,b))¡£

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x = input('Please input an integer of 4 digits meaning the year:') x = eval(x)

if x@0==0 or (x%4==0 and not x0==0): print('Yes') else:

print('No')

2£©Python 2.7.8´úÂë

x = input('Please input an integer of 4 digits meaning the year:') if x@0==0 or (x%4==0 and not x0==0): print 'Yes' else:

print 'No'

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import random

x = [random.randint(0,100) for i in range(50)] print(x) i = len(x)-1 while i>=0:

if x[i]%2==1:

del x[i] i-=1 print(x)

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import random

x = [random.randint(0,100) for i in range(20)] print(x) y = x[::2]

y.sort(reverse=True) x[::2] = y print(x)

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x = input('Please input an integer less than 1000:') x = eval('x') t = x i = 2

result = [] while True: if t==1: break if t%i==0:

result.append(i) t = t/i else:

i+=1

Print x,'=','*'.join(map(str,result))

2£©Python 2.7.8´úÂë

x = input('Please input an integer less than 1000:') t = x i = 2

result = [] while True: if t==1: break if t%i==0:

result.append(i) t = t/i else:

i+=1

print x,'=','*'.join(map(str,result))

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x = [i for i in range(1,100) if i%2==1] print(sum(x))

print(sum(range(1,100)[::2]))

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x x<0 0<=x<5 5<=x<10 10<=x<20 20<=x y 0 x 3x-5 0.5x-2 0 ´ð£ºPython 3.4.2´úÂëÈçÏ£¬Èç¹ûʹÓÃPython 2.7.8Ö»ÐèÒª°ÑÆäÖеÄprint()º¯Êý¸ÄΪprintÓï¾ä¼´¿É¡£

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