小编use*_*199的帖子

我试图在这个非常基本的 FastAPI 示例中启用 CORS，但它似乎不起作用。

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware


app = FastAPI()

app.add_middleware(
    CORSMiddleware,
    allow_origins=['*']
)

@app.get('/')
def read_main():
    return {'message': 'Hello World!'}

这是我得到的回应：

curl -v http://127.0.0.1:8000
*   Trying 127.0.0.1...
* TCP_NODELAY set
* Connected to 127.0.0.1 (127.0.0.1) port 8000 (#0)
> GET / HTTP/1.1
> Host: 127.0.0.1:8000
> User-Agent: curl/7.64.1
> Accept: */*
>
< HTTP/1.1 200 OK
< date: Fri, 08 Jan 2021 19:27:37 GMT
< server: uvicorn
< content-length: 26
< content-type: application/json
< …

如何使用来根据值进行boolean_arr过滤？ysbool

这些数组都具有相同的长度。

fn main() {
    let xs: Vec<f32> = vec![300., 7.5, 10., 250.];
    let boolean_arr: Vec<bool> = xs.into_iter().map(|x| x > 10.).collect();

    let ys: Vec<f32> = vec![110.5, 50., 25., 770.];

    assert_eq!(wanted_vec, vec![110.5, 770.]);
}

有没有办法始终使 uidateRangeInput完全可见？最小化窗口并单击日期，会发生这种情况：

library(shiny)
library(shinydashboard)

ui <- dashboardPage(
  dashboardHeader(),
  dashboardSidebar(
    sidebarMenu(
      menuItem("Home", tabName = "Home")
    )
  ),
  dashboardBody(
    tabItems(
      tabItem(tabName = "Home",
        fluidRow(
          br(),
          br(),
          br(),
          br(),
          br(),
          br(),
          box(
            dateRangeInput("daterange", "Date range:", start = "2001-01-01", end = "2010-12-31"),
            title="Select Dates", solidHeader=T, status="primary",width=6,height=250)
        )
      )
    )
  )
)

server <- function(input, output) {

}

shinyApp(ui = ui, server = server)