在Python中将Hex转换为RGB值 [英] Converting Hex to RGB value in Python

问题描述

在这里处理Jeremy的回复：将十六进制颜色转换为RGB，反之亦然-versa 我能够获得一个python程序来转换预设的彩色十六进制代码（示例＃B4FBB8），但是从最终用户的角度来看，我们不能要求人们编辑代码&从那里跑。如何提示用户输入一个十六进制值，然后从中吐出一个RGB值？

Working off Jeremy's response here: Converting hex color to RGB and vice-versa I was able to get a python program to convert preset colour hex codes (example #B4FBB8), however from an end-user perspective we can't ask people to edit code & run from there. How can one prompt the user to enter a hex value and then have it spit out a RGB value from there?

这是我到目前为止的代码：

Here's the code I have thus far:

def hex_to_rgb(value):
    value = value.lstrip('#')
    lv = len(value)
    return tuple(int(value[i:i + lv // 3], 16) for i in range(0, lv, lv // 3))


def rgb_to_hex(rgb):
    return '#%02x%02x%02x' % rgb

hex_to_rgb("#ffffff")              # ==> (255, 255, 255)
hex_to_rgb("#ffffffffffff")        # ==> (65535, 65535, 65535)
rgb_to_hex((255, 255, 255))        # ==> '#ffffff'
rgb_to_hex((65535, 65535, 65535))  # ==> '#ffffffffffff'

print('Please enter your colour hex')

hex == input("")

print('Calculating...')
print(hex_to_rgb(hex()))

使用该行 print（hex_to_rgb（'＃B4FBB8'））我能够使其吐出正确的RGB值，即（180，251，184）

Using the line print(hex_to_rgb('#B4FBB8')) I'm able to get it to spit out the correct RGB value which is (180, 251, 184)

这可能是非常简单的-我对Python仍然很粗糙。

It's probably super simple - I'm still pretty rough with Python.

推荐答案

我相信这可以满足您的需求：

I believe that this does what you are looking for:

h = input('Enter hex: ').lstrip('#')
print('RGB =', tuple(int(h[i:i+2], 16) for i in (0, 2, 4)))

（以上内容适用于Python 3）

(The above was written for Python 3)

示例运行：

Enter hex: #B4FBB8
RGB = (180, 251, 184)

写入文件

要写入具有句柄 fhandle 的文件，同时保留格式：

Writing to a file

To write to a file with handle fhandle while preserving the formatting:

fhandle.write('RGB = {}'.format( tuple(int(h[i:i+2], 16) for i in (0, 2, 4)) ))

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