Diff for "WikiSandBox" - Woodpecker Wiki for CPUG

Differences between revisions 121 and 194 (spanning 73 versions)

'刚入门，你还要留我多长时间？才肯放我晋级行者啊！！！！'

'自己编写的一个小小简单python程序'

#ax^2+bx+c=0 解二次方程的根

import math

def getroot(a,b,c):

if a==0:
- if b!=0:
  - r1=r2=-c/b
  else:
  - r1=r2=None
  - print('a,b,c!=0')
else:
- d=b**2-4*a*c
- e1=-b+math.sqrt(abs(d))
- e2=-b-math.sqrt(abs(d))
  if d>0:
  - r1=e1/(2*a)
  - r2=e2/(2*a)
  elif d==0:
  - r1=r2=-b/(2*a)
  else:
  - r1=r2=None
  - print('无根')
return(r1,r2)

a=['a','b','c']

b=[0,0,0]

for i in range(3):

a[i]=input("please float integer %s="%a[i])
if a[i]:
- try:
  - j=float(a[i])
  except ValueError as err:
  - print(err) break
b[i]=j
print('方程的根为:',getroot(b[0],b[1],b[2]))

["PythonLearningPlan"] ["MyNewPage"]

-  ⇤ ← Revision 121 as of 2008-06-14 14:49:11 → 
  Size: 1005
  Editor: python1983
  Comment:
+   ← Revision 194 as of 2012-05-16 13:38:16 → ⇥
  Size: 922
  Editor: daxian001
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 3:
-= MyNewPage =
[:MyNewPage:新手报道：]
+----
-Line 6:
+Line 5:
-[:MyNewPage:看看效果：]
+'刚入门，你还要留我多长时间？才肯放我晋级行者啊！！！！'
-Line 8:
+Line 7:
-----
实际的效果是什么样的呢？？ Python编程小组Python编程 Python和其他动态编程语言的使用者和感兴趣的人请进。 Python是豆瓣的主要开发语言。欢迎在这儿讨论豆瓣对python语言的使用、python的web应用、或者 ... www.douban.com/group/python/ - 26k - 网页快照 - 类似网页
+'自己编写的一个小小简单python程序'
-Line 11:
+Line 9:
-啄木鸟Python开源社区关于Python的开放协作组织，介绍Python语言的技术知识和使用，在中国进行Python的应用/ 推广/学习…，分享Python体验/知识/经验/技巧. wiki.woodpecker.org.cn/ - 40k - 网页快照 - 类似网页
+''''''#ax^2+bx+c=0 解二次方程的根'''
-Line 13:
+Line 11:
-xkcd - A webcomic of romance, sarcasm, math, and language - By ... - [ 翻译此页 BETA ]Permanent link to this comic: http://xkcd.com/353/. Image URL (for hotlinking/embedding): http://imgs.xkcd.com/comics/python.png ... xkcd.com/353/ - 9k - 网页快照 - 类似网页
+'''import math

def getroot(a,b,c):

 . if a==0:
  . if b!=0:
   . r1=r2=-c/b
  else:
   . r1=r2=None
   . print('a,b,c!=0')
 else:
  . d=b**2-4*a*c
  . e1=-b+math.sqrt(abs(d))
  . e2=-b-math.sqrt(abs(d))
  if d>0:
   . r1=e1/(2*a)
   . r2=e2/(2*a)
  elif d==0:
   . r1=r2=-b/(2*a)
  else:
   . r1=r2=None
   . print('无根')
 return(r1,r2)

a=['a','b','c']

b=[0,0,0]

for i in range(3):

 . a[i]=input("please float integer %s="%a[i])
 . if a[i]:
  . try:
   . j=float(a[i])
  except ValueError as err:
   . print(err) break
 b[i]=j
 . print('方程的根为:',getroot(b[0],b[1],b[2]))
 . '''

'''

["PythonLearningPlan"] ["MyNewPage"]