Diff for "WikiSandBox" - Woodpecker Wiki for CPUG

Differences between revisions 196 and 197

'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' 为什么没缩进啊？？？？

#!'''#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:
b[i]=float(a[i])
except ValueError as err:
print(err)
break
if ValueError:< > pass
else: print('方程的根为:',getroot(b[0],b[1],b[2]))

["PythonLearningPlan"] ["MyNewPage"]

-  ⇤ ← Revision 196 as of 2012-05-16 14:04:46 → 
  Size: 1023
  Editor: daxian001
  Comment:
+   ← Revision 197 as of 2013-08-19 01:28:21 → ⇥
  Size: 1031
  Editor: youjh
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 9:
-'''#ax^2+bx+c=0 解二次方程的根<<BR>>import math<<BR>>def getroot(a,b,c):<<BR>> if a==0:<<BR>> if b!=0:<<BR>> r1=r2=-c/b<<BR>> else:<<BR>> r1=r2=None<<BR>> print('a,b,c!=0')<<BR>> else:<<BR>> d=b**2-4*a*c<<BR>> e1=-b+math.sqrt(abs(d))<<BR>> e2=-b-math.sqrt(abs(d))<<BR>> if d>0:<<BR>> r1=e1/(2*a)<<BR>> r2=e2/(2*a)<<BR>> elif d==0:<<BR>> r1=r2=-b/(2*a)<<BR>> else:<<BR>> r1=r2=None<<BR>> print('无根')<<BR>> return(r1,r2)'''
+{{{#!'''#ax^2+bx+c=0 解二次方程的根<<BR>>import math<<BR>>def getroot(a,b,c):<<BR>> if a==0:<<BR>> if b!=0:<<BR>> r1=r2=-c/b<<BR>> else:<<BR>> r1=r2=None<<BR>> print('a,b,c!=0')<<BR>> else:<<BR>> d=b**2-4*a*c<<BR>> e1=-b+math.sqrt(abs(d))<<BR>> e2=-b-math.sqrt(abs(d))<<BR>> if d>0:<<BR>> r1=e1/(2*a)<<BR>> r2=e2/(2*a)<<BR>> elif d==0:<<BR>> r1=r2=-b/(2*a)<<BR>> else:<<BR>> r1=r2=None<<BR>> print('无根')<<BR>> return(r1,r2)'''}}}