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python 大于

grade = 40 if grade < 60 and grade > 0: print '合格'

if (x > 100) or (x < -100):

应该输出的是: this is my first python script Please input i:0 i0: print "i>0: ",i elif i==0: print "i=0:",i else: print "i

不是不能用,而是你用错了,

[(i>2 and i

num=input('please enter number:')就行了 针对Python2适用,Python3不行,需要转换int(num)

#coding=utf-8import sys,timefrom math import sqrtdef isprime(num): for i in range(2,int(sqrt(num))+1): if num%i==0: return False return True def gedebahe(num): for i in range(2,num//2+1): if isprime(i) and isprime(num-i): retur...

count = 0for key,value in dic.items( ): if value > 14: count += 1print count

将J Q K A 按照顺序放到一个列表或者元组里,比较元素的下标大小就行了

假设你的数据是按照图中方式存储,即第一行: 3128 1 Toy Story(1995) 01-Jap-2005 http... 117 4 20 M student user_num={}with open('data') as f: lines=f.readlines() for line in lines: user_id = line.split()[-5] if user_num.get(user_...

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