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This commit is contained in:
Geoff Liu 2014-10-31 16:01:10 -06:00
parent 2444690e5f
commit fb89673ef1
1 changed files with 6 additions and 6 deletions
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zh-cn/python3-cn.html.markdown
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@ -148,8 +148,8 @@ print("I'm Python. Nice to meet you!")
some_var = 5 some_var = 5
some_var # => 5 some_var # => 5
# 存取未赋值的变量会抛出异常 # 访问未赋值的变量会抛出异常
# 下面流程控制一段更深入讲解异常处理 # 参考流程控制一段来学习异常处理
some_unknown_var # 抛出NameError some_unknown_var # 抛出NameError
# 用列表(list)储存序列 # 用列表(list)储存序列
@ -167,22 +167,22 @@ li.pop() # => 3 且li现在是[1, 2, 4]
# 把3再放回去 # 把3再放回去
li.append(3) # li变回[1, 2, 4, 3] li.append(3) # li变回[1, 2, 4, 3]
# 列表取值跟数组一样 # 列表存取跟数组一样
li[0] # => 1 li[0] # => 1
# 取出最后一个元素 # 取出最后一个元素
li[-1] # => 3 li[-1] # => 3
# 越界读取会造成IndexError # 越界存取会造成IndexError
li[4] # 抛出IndexError li[4] # 抛出IndexError
# 列表的切割语法 # 列表有切割语法
# (It's a closed/open range for you mathy types.) # (It's a closed/open range for you mathy types.)
li[1:3] # => [2, 4] li[1:3] # => [2, 4]
# 取尾 # 取尾
li[2:] # => [4, 3] li[2:] # => [4, 3]
# 取头 # 取头
li[:3] # => [1, 2, 4] li[:3] # => [1, 2, 4]
# 每两个取一个 # 隔一个取一个
li[::2] # =>[1, 4] li[::2] # =>[1, 4]
# 倒排列表 # 倒排列表
li[::-1] # => [3, 4, 2, 1] li[::-1] # => [3, 4, 2, 1]