|
#2
liufashuai2013-08-12 16:33
我想应该这样的，希望大神给与指点：
 程序代码：def flatten(nested): try: for sublist in nested: print 'AAAAAA'+str(sublist) for element in flatten(sublist): print 'BBBBBB'+str(element) yield element except TypeError: print 'CCCCCC'+str(nested) yield nested 经过上面这个测试程序代码 测试[1,[2,3],[23,2]]和[[[[[4]]]]] 这两个例子，根据输出的调试语句可以大概窥出原理： 先是把第一个列表分离，然后分离每个分离后的列表，当为数字的时候就yield起来，这样递归加循环一层一层的剥去列表 |
程序代码：def flatten(nested):
try:
for sublist in nested:
for element in flatten(sublist):
yield element
except TypeError:
yield nested
try:
for sublist in nested:
for element in flatten(sublist):
yield element
except TypeError:
yield nested