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| = RexChen'S HOME->>> PYTHON = | |
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| Though i am freshman,i belive: | |
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| . i'm the best!!! And i want to be better! ---- ["个人网页分类"] MyNewPage3 |
'刚入门，你还要留我多长时间？才肯放我晋级行者啊！！！！' |
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| ["Zone"] | '自己编写的一个小小简单python程序' |
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| = 呵呵，随便来点吧。。。 = . 会成为标题 = d_d = == d_d == == d_d == == 随便什么 == 会成为副标题, 最多可用 5 个 "=" 号. |
''''''#ax^2+bx+c=0 解二次方程的根''' |
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| -------- 产生分行线 {{{ 随便什么 }}}的作用和用 <pre> 差不多 |
'''import math |
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| . 特别的{{{#!python ... }}} . 将自动对Python代码进行语法颜色处理! [[Anchor(SectionAnchor)]] 产生一个名为"SectionAnchor"的锚点 |
def getroot(a,b,c): |
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| HelloWorld | . 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) |
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| -- PhdTest [[DateTime(2008-10-07T08:46:21Z)]] | 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"] |
'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
- r1=r2=None
- print('a,b,c!=0')
- 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)
- r1=r2=-b/(2*a)
- r1=r2=None
- print('无根')
- if b!=0:
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
- try:
- print('方程的根为:',getroot(b[0],b[1],b[2]))
["PythonLearningPlan"] ["MyNewPage"]