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Size: 3577
Comment: 不行！没有安装成功dot
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| Deletions are marked like this. | Additions are marked like this. |
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| Please feel free to experiment here, after the four dashes below... and please do '''NOT''' create new pages without any meaningful content just to try it out! | #acl Known:read,write All:read ---- |
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| '''Tip:''' Shift-click "HelpOnEditing" to open a second window with the help pages. | '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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| '自己编写的一个小小简单python程序' | |
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| [[TableOfContents]] | ''''''#ax^2+bx+c=0 解二次方程的根''' |
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| WIKI测试区本区请任意修改, 测试各种语法. | '''import math |
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| = dot 解析！ = * '''AT&T 的脚本图形生成工具！''' {{{ { { {#!dot digraph G { node [fillcolor=white, style=filled]; 0 [label="And"]; 0 -> 1; 1 [label="a", shape=box]; 0 -> 2; 2 [label="Or"]; 2 -> 1; 2 -> 3; 3 [label="b", shape=box]; 0 -> 4; 4 [label="Or"]; 4 -> 3; 4 -> 5; 5 [label="c", shape=box]; } } } } |
def getroot(a,b,c): |
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| }}} 生成:: {{{不行！没有安装成功dot digraph G { node [fillcolor=white, style=filled]; 0 [label="And"]; 0 -> 1; 1 [label="a", shape=box]; 0 -> 2; 2 [label="Or"]; 2 -> 1; 2 -> 3; 3 [label="b", shape=box]; 0 -> 4; 4 [label="Or"]; 4 -> 3; 4 -> 5; 5 [label="c", shape=box]; } }}} {{{ { { {#!dot digraph G { node [fillcolor=white, style=filled]; 0 [label="Or"]; 0 -> 1; 1 [label="And"]; 1 -> 2; 2 [label="a", shape=box]; 1 -> 3; 3 [label="b", shape=box]; 0 -> 4; 4 [label="And"]; 4 -> 2; 4 -> 5; 5 [label="c", shape=box]; } } } } |
. 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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| }}} 生成:: | a=['a','b','c'] |
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| {{{#!dot digraph G { node [fillcolor=white, style=filled]; 0 [label="Or"]; 0 -> 1; 1 [label="And"]; 1 -> 2; 2 [label="a", shape=box]; 1 -> 3; 3 [label="b", shape=box]; 0 -> 4; 4 [label="And"]; 4 -> 2; 4 -> 5; 5 [label="c", shape=box]; } }}} |
b=[0,0,0] |
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| (!) You can build such abstract syntax trees interactively using ["ltl2tgba"] with the option ''draw the formula''. | for i in range(3): |
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| {{{无修饰文字; 原文呈现测试}}} {{{#!dot digraph G { node [style=filled, fillcolor=white] a -> b -> c -> d -> e -> a |
. 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])) . ''' |
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| // a comment | ''' |
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| a [URL='http://some.where/a'] // link to an external URL b [URL='MoinMoinLink'] // link to a wiki absolute page c // link to a wiki subpage d [URL='#anchor'] // link to an anchor in current page e [fillcolor=blue] } }}} * 第一点 oo * 第二点 ''第二眯'' * 第三点 --------- 体验 ---- ''斜体''; '''粗体'''; '''''粗斜'''''; ''混合 '''粗体''' 与斜体''; ---- 分隔线 = Hi = == Hi Hi == ==== Hi Hi Hi ==== ===== Hi Hi Hi ===== ====== Hi Hi Hi ====== ---- ----- ------ ------- -------- --------- == Formatting == ''italic'' '''bold''' {{{typewriter}}} `backtick typewriter` (configurable) {{{ preformatted }}} == Linking == HelpOnEditing MoinMoin:InterWiki http://purl.net/wiki/moin/ [http://www.python.org/ Python] [email protected] === Image Link === http://c2.com/sig/wiki.gif == Lists == === Bullet === * first 1. nested and numbered 1. numbered lists are renumbered * second blockquote deeper === Glossary === Term:: Definition === Drawing === drawing:mytest Here is a '''new''' test drawing:nremap == 宏 macro == [[MonthCalendar]] == 中文Wiki链接 == '''可以使用中文的 Wiki 页面名来创建新页面''' * ["中文页面名"] * or * Self:中文页面名 * 当然创建后的页面实际名称为 {{{%E4%B8%AD%E6%96%87%E9%A1%B5%E9%9D%A2%E5%90%8D}}} 完全的UTF-8 编辑字串，一样，对于搜索来讲不好 * ["中文测试"] * ["链接到哪里去了？"] |
["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"]