我如何只用screenshoturl2和screenshoturl1从字典将两个相同的键添加到JSON文件？
这是我现在拥有的代码，它可以工作，但是只添加第一个screenshoturl1而不是screenshoturl2，而且我不知道如何添加它。有关我的主题的更多信息以及可能有用的信息，请参见回复here
#!/usr/bin/env python3
import os
import sys
import json
import fileinput
def NumberofScreenshots():
global numberofscreenshots
while True:
try:
numberofscreenshots = input("Number of Screenshots?: ")
if numberofscreenshots == '':
print("Please enter how much screenshots to include.")
continue
elif numberofscreenshots.isalpha():
print("Please enter a number not a string.")
continue
else:
break
except ValueError:
break
def ScreenshotURL():
global screenshoturl1, screenshoturl2
if numberofscreenshots == "1":
screenshoturl1 = input("Screenshot URL: ")
elif numberofscreenshots == "2":
screenshoturl1 = input("Screenshot URL: ")
screenshoturl2 = input("Screenshot URL: ")
else:
pass
def NumberofScreenshots1():
if numberofscreenshots == "1":
with open('path/to/json/file','r') as f:
data = json.loads(f.read())
data['tabs'][0]['views'][1]['screenshots'][0]
data['tabs'][0]['views'][1]['screenshots'] = data['tabs'][0]['views'][1]['screenshots'][0]
data['tabs'][0]['views'][1]['screenshots'] = {"accessibilityText": "Screenshot","url": screenshoturl1,"fullSizeURL": screenshoturl1}
with open('path/to/json/file', 'w') as f:
f.write(json.dumps(data))
else:
print("Try again.")
def NumberofScreenshots2():
global data
if numberofscreenshots == "2":
with open('path/to/json/file','r') as f:
data = json.loads(f.read())
data['tabs'][0]['views'][1]['screenshots'][0]
print(data)
data['tabs'][0]['views'][1]['screenshots'] = data['tabs'][0]['views'][1]['screenshots'][0]
print(data)
data['tabs'][0]['views'][1]['screenshots'].update({"accessibilityText": "Screenshot","url": screenshoturl1,"fullSizeURL": screenshoturl1, "accessibilityText": "Screenshot","url": screenshoturl2,"fullSizeURL": screenshoturl2})
print(data)
with open('path/to/json/file', 'w') as f:
f.write(json.dumps(data))
else:
print("Try again.")
print("Pick Template:")
print("1. Default")
template = input("Template Name/Number: ")
if (template == "1"):
NumberofScreenshots()
ScreenshotURL()
NumberofScreenshots1()
NumberofScreenshots2()
# Show the user a error if they enter a number for a template that can't be found.
else:
print("The template you are looking for can not be found!")
我们正在查看名为NumberofScreenshots2
JSON文件：
{
"tabs": [
{
"tabname": "Details",
"views": [
{
"title": "Some Name",
"useBoldText": true,
"useBottomMargin": false,
"class": "DepictionSubheaderView"
},
{
"itemCornerRadius": 6,
"itemSize": "",
"screenshots": [
{
"accessibilityText": "Screenshot",
"url": "Screenshot URL 1",
"fullSizeURL": "Screenshot URL 1"
},
{
"accessibilityText": "Screenshot",
"url": "Screenshot URL 2",
"fullSizeURL": "Screenshot URL 2"
},
{
"accessibilityText": "Screenshot",
"url": "Screenshot URL 3",
"fullSizeURL": "Screenshot URL 3"
},
{
"accessibilityText": "Screenshot",
"url": "Screenshot URL 4",
"fullSizeURL": "Screenshot URL 4"
},
{
"accessibilityText": "Screenshot",
"url": "Screenshot URL 5",
"fullSizeURL": "Screenshot URL 5"
}
],
"ipad": {
"itemCornerRadius": 9,
"itemSize": "{320, 550.8266666666667}",
"screenshots": [
{
"accessibilityText": "Screenshot",
"url": " Screenshot URL?size=640",
"fullSizeURL": "Screenshot URL"
}
],
"class": "DepictionScreenshotView"
},
"class": "DepictionScreenshotsView"
},
{
"markdown": " Description",
"useSpacing": true,
"class": "DepictionMarkdownView"
},
{
"class": "DepictionSeparatorView"
},
{
"title": "Known Issues",
"class": "DepictionHeaderView"
},
{
"markdown": "None",
"useSpacing": true,
"class": "DepictionMarkdownView"
},
{
"class": "DepictionSeparatorView"
},
{
"title": "Latest Version",
"class": "DepictionHeaderView"
},
{
"title": "1.0",
"text": "Latest Version Number",
"class": "DepictionTableTextView"
},
{
"title": "Released",
"text": "3/10/19",
"class": "DepictionTableTextView"
},
{
"title": "Price",
"text": "Free",
"class": "DepictionTableTextView"
},
{
"title": "Developer",
"text": "TestDev",
"class": "DepictionTableTextView"
},
{
"title": "Contact Support",
"action": "",
"class": "DepictionTableButtonView"
},
{
"spacing": 16,
"class": "DepictionSpacerView"
},
{
"spacing": 20,
"class": "DepictionSpacerView"
}
],
"class": "DepictionStackView"
},
{
"tabname": "Changelog",
"views": [
{
"title": "1.0",
"useBoldText": true,
"useBottomMargin": true,
"class": "DepictionSubheaderView"
},
{
"markdown": "\t\n\u2022 Initial Release",
"useSpacing": false,
"class": "DepictionMarkdownView"
},
{
"markdown": "<small style=\"color: #999; margin-top: -8px;\">Released 3/10/2019</small>",
"useRawFormat": true,
"class": "DepictionMarkdownView"
}
],
"class": "DepictionStackView"
}
],
"class": "DepictionTabView"
}
我希望它删除screenshots中的所有内容，并使用他们在screenshoturl1和screenshoturl2中输入的用户输入重新添加，因此它将删除诸如{中的占位符{1}}，并且仅将用户在screenshots和screenshoturl1中输入的URL加2即可，帮助会很不错。
谢谢！
答案 0 :(得分：0)
您可以将值设为一个集合（例如列表或元组）。为了增加便利，您可以使用defaultdict。因此，如果您想要一个键具有两个值：
from collections import defaultdict
multiValueDict = defaultdict(list)
multiValueDict[1].append(1)
multiValueDict[1].append(2)
print(multiValueDict[1])
这将输出：
[1, 2]
答案 1 :(得分：0)
如果我了解您要在此处进行的操作，则您似乎想一次更新一个或两个URL。
您可以做的是一次浏览每个屏幕截图项目，然后更新或停止。这样比较容易，如果需要，还可以更新所有它们。这也意味着我们不必问要先做多少事（只要再没有其他东西就停下来）。
import json
# Load the data
file_name = 'path/to/json/file'
with open(file_name) as fh:
full_data = json.load(fh)
# Dig into the data to find the screenshots
screen_shots = full_data['tabs'][0]['views'][1]['screenshots']
# Loop over each screen shot, updating each one
for number, screen_shot in enumerate(screen_shots):
print("Screenshot", number)
print('\tCurrent data:', screen_shot)
new_url = input(
"\tPlease enter new URL (leave empty and press return to stop): "
).strip()
if new_url:
# Updating the data here will also update the 'full_data' object
# as we are just referencing a part of it, not making copies
screen_shot.update({"url": new_url, "fullSizeURL": new_url})
else:
print("\tAll done!")
break
# Remove all entries which we did not update
screen_shots = screen_shots[:number]
# Save the data
with open(file_name, 'w') as fh:
json.dump(full_data, fh, indent=4)
您可能需要研究的其他事情是从函数返回结果而不是使用全局变量，因为这会很快与较大的脚本混淆。