浮动数字和str [英] Floating numbers and str

问题描述

我想将浮动变量限制为4个有意义的数字，当

运行strugh a str命令时。 Ei，

x = .13241414515

y = str（x）+"这里的东西


但不知何故将其限制在4个符号。数字。我知道如果你使用

打印语句，你可以做类似％.4d的事情，但是如何将这个数字转换为字符串？

？谢谢！

I would like to limit a floating variable to 4 signifigant digits, when
running thorugh a str command. Ei,
x=.13241414515
y=str(x)+" something here"

But somehow limiting that to 4 sign. digits. I know that if you use the
print statement, you can do something like %.4d, but how can I do this
with converting the number to a string? Thanks!

推荐答案

Tuvas写道：

我想将浮动变量限制为4个有意义的数字，当
运行strugh一个str命令。 Ei，

x = .13241414515
y = str（x）+"这里有什么东西

但不知何故将它限制为4个符号。数字。我知道如果你使用
print语句，你可以做类似％.4d的事情，但是如何将数字转换为字符串呢？谢谢！

I would like to limit a floating variable to 4 signifigant digits, when
running thorugh a str command. Ei,
x=.13241414515
y=str(x)+" something here"

But somehow limiting that to 4 sign. digits. I know that if you use the
print statement, you can do something like %.4d, but how can I do this
with converting the number to a string? Thanks!

浮点型
％d？是吗？


无论如何，ITYW：


"％。4g" ％x


例如：

%d for a floating-point type? Is that right?

Anyway, ITYW:

"%.4g" % x

E.g:

x = .13241414515
y ="％。4g这里的东西 ％x
打印y
0.1324这里的东西

x=.13241414515
y="%.4g something here" % x
print y 0.1324 something here

我想你回答了自己的问题。 :)


x = 0.12345678

y ="％。4f something here" ％x


在星期三，2005-11-09 11:52 - 0800，Tuvas写道：

I think you answered your own question. :)

x = 0.12345678
y = "%.4f something here" % x

On Wed, 2005-11-09 at 11:52 -0800, Tuvas wrote:

我想将浮动变量限制为4
运行strugh命令时，有意义的数字。 Ei，

x = .13241414515
y = str（x）+"这里有什么东西

但不知何故将它限制为4个符号。数字。我知道如果你使用
print语句，你可以做类似％.4d的事情，但是如何将数字转换为字符串呢？谢谢！

I would like to limit a floating variable to 4 signifigant digits, when
running thorugh a str command. Ei,
x=.13241414515
y=str(x)+" something here"

But somehow limiting that to 4 sign. digits. I know that if you use the
print statement, you can do something like %.4d, but how can I do this
with converting the number to a string? Thanks!

是的，我在想C，而不是python。谢谢你的帮助！

Yep, I was thinking in C, not python. Thanks for the help!

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