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接码题

代码实现示例

创造一个生成器

def float_range(init, end, step):      x = init      while x < end:          yield x          x += step

测试过程

for f in float_range(0, 4, 0.5):      print(f)   produce a list by float_range(0,1,0.125) and print it: flist = list(float_range(0,1,0.125)) print(flist)

深度解析

解析示例

def countdown(n):      print('开始计数从', n)      while n > 0:          yield n          n -= 1      print('完成！')  c = countdown(3)  print(next(c))  print(next(c))  print(next(c))  try:      print(next(c))  except StopIteration:      print("已经到达结束.")

实验结果