小编Yu *_*ang的帖子

我正在学习使用ipython笔记本的课程.当我尝试下载笔记本时(通过文件 - >下载为 - > ipython笔记本),我得到一个以".ipynb.json"结尾的文件.它不作为ipython笔记本打开,而是作为.json文件打开,所以像这样:

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "---\n",
    "\n",
    "_You are currently looking at **version 1.1** of this notebook. To         download notebooks and datafiles, as well as get help on Jupyter notebooks in the Coursera platform, visit the [Jupyter Notebook FAQ](https://www.coursera.org/learn/python-data-analysis/resources/0dhYG) course resource._\n",
    "\n",
    "---"
   ]
  },
...
}

我已经尝试删除文件名中的".json",但它不起作用.如何将此文件转换回可以作为ipython笔记本打开和运行的文件？非常感谢你!

我想在我的闪亮应用程序中显示一个链接,该链接指向根据用户输入生成的URL.我不想显示URL的全文.我知道如果事先知道URL,可以使用a(href ="",label ="")函数,但在这种情况下,URL取决于用户的输入.以下不起作用:

ui <- fluidPage(
    titlePanel("Show map of a given state"),
    sidebarLayout(
        sidebarPanel(
            textInput("state", label = "State", value = "CA", placeholder = "California or CA"),
            actionButton("showU","Show map")
        ),
        mainPanel(
            conditionalPanel(
                condition = "input.showU > 0",
                htmlOutput("url"),
                a(href=htmlOutput("url"),"Show in Google Map",target="_blank")
            )
        )
    )
)

server <- function(input, output){
    observeEvent(input$showU,{
    output$url <-renderUI({paste("https://www.google.com/maps/place/", input$state, sep="")})
    })
}

shinyApp(ui,server)

我希望我可以点击"在谷歌地图上显示",然后转到即时生成的网址.请帮帮我,谢谢.