Diff for "WikiSandBox" - Woodpecker Wiki for CPUG

Differences between revisions 120 and 192 (spanning 72 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 120 as of 2008-06-03 14:25:28 → 
  Size: 1236
  Editor: zhuyj
  Comment:
+   ← Revision 192 as of 2012-05-16 13:28:53 → ⇥
  Size: 1075
  Editor: daxian001
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 3:
-= MyNewPage =
[:MyNewPage:新手报道：]
+----                                       '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'
 Line 6:
-[:MyNewPage:本人热爱python编程，可惜经验不足是个新手。需要大家的帮忙，已经对python的语法有所了解，想进一步学习，希望大家能给我指导一下。该如何学习python编程！]
+'''
#ax^2+bx+c=0 解二次方程的根
-Line 8:
+Line 9:
-[:MyNewPage:看看效果：]
+import math
-Line 10:
+Line 11:
-----
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
+def getroot(a,b,c):
-Line 15:
+Line 13:
-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
+    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)
-Line 18:
+Line 33:
-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
+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"]