Diff for "WikiSandBox" - Woodpecker Wiki for CPUG

Differences between revisions 191 and 194 (spanning 3 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 191 as of 2012-05-16 13:26:52 → 
  Size: 1067
  Editor: daxian001
  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:
-----                                       '刚入门，你还要留我多长时间？才肯放我晋级行者啊！！！！'
+----

'刚入门，你还要留我多长时间？才肯放我晋级行者啊！！！！'
-Line 5:
+Line 8:
-'''
#ax^2+bx+c=0 解二次方程的根
import math
+''''''#ax^2+bx+c=0 解二次方程的根'''

'''import math
-Line 9:
+Line 14:
-    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)
+ . 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 30:
+Line 36:
-Line 31:
+Line 38:
-Line 32:
+Line 40:
-    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]))
+ . 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]))
 . '''
-Line 43:
+Line 53:
-["PythonLearningPlan"]
["MyNewPage"]
+["PythonLearningPlan"] ["MyNewPage"]