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## page was renamed from ObpLovelyPython/LpyAttach-answer
## page was renamed from ObpLovelyPython/Answer
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||'''status'''|| 校对  || ShengYan || 完成度70%||

 ||'''status''' || 校对 || lizzie || 完成度100% ||
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== CDays ==
=== CDays-5 ===

 * 计算今年是闰年嘛?

 * 利用python作为科学计算器。熟悉Python中的常用运算符，并分别求出表达式12*34+78-132/6、(12*(34+78)-132)/6、(8.6/4)**5的值。并利用math模块进行数学计算，分别求出145/23的余数，0.5的sin和cos值等等，详细可参考help(math)。

 * 编写程序，在屏幕上打印出如下图案：

=== CDays-4 ===
 * os 模块中还有哪些功能可以使用? -- 提示使用 `dir()` `help()`

 * `open()` 还有哪些模式可以使用?

 * 尝试`for .. in ..` 循环可以对哪些数据类型进行操作?

 * 格式化声明,还有哪些格式可以进行约定?

 * 现在的写入文件模式好嘛? 有改进的余地?
'''CDay-4-5.py''' 好在哪里? :
{{{#!python
# coding : utf-8
import os
export = ""
for root, dirs, files in os.walk('/media/cdrom0'):
  export+="\n %s;%s;%s" % (root,dirs,files)
open('mycd2.cdc', 'w').write(export)
}}}

'''CDay-4-6.py''' 又更加好在哪里? :
{{{#!python
# coding : utf-8
import os
export = []
for root, dirs, files in os.walk('/media/cdrom0'):
    export.append("\n %s;%s;%s" % (root,dirs,files))
open('mycd2.cdc', 'w').write(''.join(export))
}}}

 * 读取文件cdays-4-test.txt内容，去除空行和注释行后，以行为单位进行排序，并将结果输出为cdays-4-result.txt。

=== CDays-3 ===
=== CDays-2 ===
=== CDays-1 ===
=== CDays-0 ===
=== CDays+1 ===
=== CDays+2 ===
=== CDays+3 ===

== KDays ==

== 小结 ==
## 总体语法等等叙述,注意给出相关知识的阅读指导

  1. [:/CDays:CDays]
 1. [:/KDays:KDays]
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::-- ZoomQuiet [[[DateTime(2008-04-26T07:41:41Z)]]]
[[PageComment2]]		  . ::-- ZoomQuiet [[[DateTime(2008-04-26T07:41:41Z)]]] [[PageComment2]]

status

校对

lizzie

完成度100%

TableOfContents

1. 故事练习解答

  1. [:/CDays:CDays]

  2. [:/KDays:KDays]

ObpLovelyPython/LpyAttach3answer (last edited 2009-12-25 07:14:24 by localhost)