Question

我一直在从事计算机科学30课程的任务。在这项任务中，我被要求访问API并返回一个不仅仅是整个字典的特定值。我的问题是我似乎无法打印我想要的值，因为它是一个字符串而不是整数或切片。如果您决定向我提供帮助，这是我的完整代码。谢谢你的时间。

import requests
import urllib.parse

# set up a temporary copy of the google api
temp = "https://maps.googleapis.com/maps/api/directions/json?
origin=Disneyland&destination=Universal+Studios+Hollywood4"

# set up the main API and the origin and destination inputs from the user
main_api = "https://maps.googleapis.com/maps/api/directions/json?"
origin = str(input("Enter in the place that is you are going away from: "))
destination = str(input("Enter the destination that you would like to reach: 
"))

# set up the url from the main api, the origin, and the destination
url = main_api + urllib.parse.urlencode({"origin": origin, "destination": 
destination})
# print the url back to the user
print(url)

# show the user the distance between the origin and the destination
json_data = requests.get(url).json()
print(json_data['routes']['legs']['distance']['text'])

Answer 1

你有几个嵌套在json dict响应中的列表。检查以下结果！

class Test from React.Component {

        getPlainText = () => {
            const plainText = /* some method */(this.renderParagraph())
            console.log(plainText) // output in console: <p>I'm text from props of Text component!</p>
        }

        renderParagraph () {
           return <p>{this.props.text}</p>
        }

        render () {
            return <button onClick={this.getPlainText}>click me will print {this.props.text} in console</button>
        }
    }

输出

json_data['routes'][0]['legs'][0]['distance']

如何从字典中的字典中访问字符串中的值

1 个答案: