大一python编程题库和答案-Python编程练习题.pdf

⼤⼀python编程题库和答案_Python编程练习题 1 求可⽤被17整除的所有三位数 for num in range(99,1000): if num % 17 == 0: print num ps:下⾯的写法和上⾯的写法性能的差距,上⾯好吧? for num in range(99,1000): if num % 17 == 0: print num else: continue 2 连续整数之合 >>> sum = 0 >>> x = int (raw_input ('pls input x: ')) pls input x: 22 >>> for num in range(0,x): ... sum += num ... >>> print sum 231 >>> 累加 x = int(raw_input('please input x : ' )) layer = 1 while layer <= x: lsum = 0 count =1 while count <= layer: lsum += count count += 1 fstr = '' for num in