基本的硬币鳍状肢程序 - 逻辑错误帮助 [英] Basic coin flipper program - logical error help

问题描述

我只是在学习Python。我已经创建了一个简单的硬币翻转程序 -

这里是代码：


[来源]

#Coin flipper

随机进口


头= 0

尾巴= 0

counter = 0

coin = random.randrange（2）


while（counter< 100）：

if（coin == 0）：

头+ = 1

柜台+ = 1

否则：

尾巴+ = 1

计数器+ = 1


coin = random.randrange（2）

print" \ n硬币落在头上 ，头部，时间。

打印\ n硬币落在尾巴上，尾巴，时间。

[/ source]


<<<我确定[来源]标签不起作用 - 我在那里通过它们

无论如何。> >>


程序运行 - 但是 - 它会给我100个头或100个尾巴。

有人能发现逻辑错误吗？

谢谢


~Dan

解决方案

在星期二，2006-02-21 16:14 -0800，DannyB写道：< blockquote class =post_quotes>我只是在学习Python。我创造了一个简单的硬币鳍状肢程序 -
这里是代码：

[来源]
＃Coin鳍状肢
随机导入

head = 0
tails = 0
counter = 0

coin = random.randrange（2）

while（counter< 100） ：
if（coin == 0）：
head + = 1
counter + = 1
else：
tails + = 1
counter + = 1

coin = random.randrange（2）

打印\ n硬币降落在头上，头，时代。
打印\ n硬币落在尾巴上，尾巴，时代。
[/ source]

<<<<我确定[来源]标签不起作用 - 无论如何我在那里通过
。>>>

程序运行 - 但是 - 它会给我100个头或100个尾巴。 />有人能发现逻辑错误吗？

是的。在while循环中放置coin = random.randrange（2）。


随机导入


heads = 0

tails = 0

counter = 0

coin = random.randrange（2）


while（counter < 100）：

if（coin == 0）：

head + = 1

counter + = 1

否则：

尾巴+ = 1

柜台+ = 1


coin = random.randrange（2）


打印\ n硬币降落在头上，头，时间。

打印\ n硬币降落在尾巴上 ，尾巴，时间。

-

此邮件已通过MailScanner扫描病毒和

危险内容，并且

被认为是干净的。

DannyB写道：

我只是在学习Python 。我创造了一个简单的硬币鳍状肢程序 -
这里是代码：

[来源]
＃Coin鳍状肢
随机导入

head = 0
tails = 0
counter = 0
while（counter< 100）：


coin = random .randrange（2）


Claudio

if（coin == 0）：
head + = 1
counter + = 1
其他：
尾巴+ = 1
计数器+ = 1

币= random.randrange（2）

打印" \\ \\ n硬币落在头上，头，时间。
打印\ n硬币落在尾巴上，尾巴，时代。
[/ source]

<<<我确定[source]标签不起作用 - 无论如何我在那里通过它们。>>>
<程序运行 - 然而 - 它会给我100个头或100个尾巴。
有人能发现逻辑错误吗？

谢谢

~Dan

DannyB写道：

我只是在学习Python。我创造了一个简单的硬币鳍状肢程序 -
这里是代码：

[来源]
＃Coin鳍状肢
随机导入

head = 0
tails = 0
counter = 0

coin = random.randrange（2）

while（counter< 100） ：
if（coin == 0）：
head + = 1
counter + = 1
else：
tails + = 1
counter + = 1

coin = random.randrange（2）

打印\ n硬币降落在头上，头，时代。
打印\ n硬币落在尾巴上，尾巴，时代。
[/ source]

<<<<我确定[来源]标签不起作用 - 无论如何我在那里通过
。>>>

程序运行 - 但是 - 它会给我100个头或100个尾巴。有人能发现逻辑错误吗？

谢谢

〜丹

看起来很像你的作业，但是我'克给你一个线索。

你需要把你的硬币扔进你的循环中。否则

你只需抛硬币一次，然后循环100次，使用

相同的值。


-Larry Bates

I''m just learning Python. I''ve created a simple coin flipper program -
here is the code:

[source]
#Coin flipper
import random

heads = 0
tails = 0
counter = 0

coin = random.randrange(2)

while (counter < 100):
if (coin == 0):
heads += 1
counter += 1
else:
tails += 1
counter += 1

coin = random.randrange(2)
print "\nThe coin landed on heads", heads, "times."
print "\nThe coin landed on tails", tails, "times."
[/source]

<<<I''m sure the [source] tags don''t work - I through them in there
anyway.>>>

The program runs - however - it will give me 100 heads OR 100 tails.
Can someone spot the logic error?

Thanks

~Dan

解决方案

On Tue, 2006-02-21 at 16:14 -0800, DannyB wrote:

I''m just learning Python. I''ve created a simple coin flipper program -
here is the code:

[source]
#Coin flipper
import random

heads = 0
tails = 0
counter = 0

coin = random.randrange(2)

while (counter < 100):
if (coin == 0):
heads += 1
counter += 1
else:
tails += 1
counter += 1

coin = random.randrange(2)
print "\nThe coin landed on heads", heads, "times."
print "\nThe coin landed on tails", tails, "times."
[/source]

<<<I''m sure the [source] tags don''t work - I through them in there
anyway.>>>

The program runs - however - it will give me 100 heads OR 100 tails.
Can someone spot the logic error?

Yes. Put coin = random.randrange(2) inside the while loop.

import random

heads = 0
tails = 0
counter = 0

coin = random.randrange(2)

while (counter < 100):
if (coin == 0):
heads += 1
counter += 1
else:
tails += 1
counter += 1

coin = random.randrange(2)

print "\nThe coin landed on heads", heads, "times."
print "\nThe coin landed on tails", tails, "times."
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

DannyB wrote:

I''m just learning Python. I''ve created a simple coin flipper program -
here is the code:

[source]
#Coin flipper
import random

heads = 0
tails = 0
counter = 0

while (counter < 100):
coin = random.randrange(2)

Claudio
if (coin == 0):
heads += 1
counter += 1
else:
tails += 1
counter += 1

coin = random.randrange(2)
print "\nThe coin landed on heads", heads, "times."
print "\nThe coin landed on tails", tails, "times."
[/source]

<<<I''m sure the [source] tags don''t work - I through them in there
anyway.>>>

The program runs - however - it will give me 100 heads OR 100 tails.
Can someone spot the logic error?

Thanks

~Dan

DannyB wrote:

I''m just learning Python. I''ve created a simple coin flipper program -
here is the code:

[source]
#Coin flipper
import random

heads = 0
tails = 0
counter = 0

coin = random.randrange(2)

while (counter < 100):
if (coin == 0):
heads += 1
counter += 1
else:
tails += 1
counter += 1

coin = random.randrange(2)
print "\nThe coin landed on heads", heads, "times."
print "\nThe coin landed on tails", tails, "times."
[/source]

<<<I''m sure the [source] tags don''t work - I through them in there
anyway.>>>

The program runs - however - it will give me 100 heads OR 100 tails.
Can someone spot the logic error?

Thanks

~Dan

Looks an awful lot like your homework, but I''ll give you a clue.
You need to get the your coin tosses inside your loop. Otherwise
you only toss the coin once and then loop 100 times with the
same value.

-Larry Bates

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