python中怎么确定for的范围？如果for循环底下行数很多怎么知道它的范围在哪里呀？ python中，如何在每一次for循环时都建一个新的列表？
python\u600e\u4e48\u786e\u5b9afor\u5faa\u73af\u7684\u8303\u56f4\u770b\u7f29\u8fdb\u54af\u3002\u653e\u5230\u4e00\u4e2a\u7b2c\u4e09\u65b9\u7684\u7f16\u8f91\u5668\u4e0a\u770b\u4ecefor\u5173\u952e\u5b57\u770b\u4e0a\u5f80\u4e0b\u7684\u4ee3\u7801\u4e2d\u7f29\u8fdb\u60c5\u51b5\u3002\u76f4\u5230\u6709\u4ee3\u7801\u548c\u8fd9\u4e2afor\u5728\u5782\u76f4\u4f4d\u7f6e\u5904\u4e8e\u76f8\u540c\u65f6\uff0c\u8868\u793afor\u5faa\u73af\u7ed3\u675f\u3002
\u8fd9\u6837\uff1a
list = []
>>> for i in range(5):
... list.append([i])
...
>>> list
[[0], [1], [2], [3], [4]]
>>> list[0]
[0]
>>> list[1]
[1]
\u6269\u5c55\u8d44\u6599\uff1a\u6ce8\u610f\u4e8b\u9879
Python for\u5faa\u73af\u53ef\u4ee5\u904d\u5386\u4efb\u4f55\u5e8f\u5217\u7684\u9879\u76ee\uff0c\u5982\u4e00\u4e2a\u5217\u8868\u6216\u8005\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002
\u8bed\u6cd5\uff1a
for\u5faa\u73af\u7684\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a
for iterating_var in sequence:
statements(s)
\u4f8b\u5982\uff1a
#!/usr/bin/python
# -*- coding: UTF-8 -*-
for letter in 'Python': # \u7b2c\u4e00\u4e2a\u5b9e\u4f8b
print '\u5f53\u524d\u5b57\u6bcd :', letter
fruits = ['banana', 'apple', 'mango']
for fruit in fruits: # \u7b2c\u4e8c\u4e2a\u5b9e\u4f8b
print '\u5f53\u524d\u6c34\u679c :', fruit print "Good bye!"
python使用缩进表示代码范围。类似于C的花括号。
for x in range(666):
# x从这里开始
...
for y in range(777):
# y从这里开始
...
# y到这里结束
# x到这里结束
# 其他代码
...
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