鍍金池/ 問(wèn)答/ HTML問(wèn)答
紓惘 回答

這就是數(shù)據(jù)持久化的必要性了。

事務(wù)的話由數(shù)據(jù)庫(kù)的事務(wù)來(lái)接手可能比較好，當(dāng)然如果你自己用代碼實(shí)現(xiàn)也沒問(wèn)題，注意事務(wù)的鎖也要持久化就行

app是可以判斷的，但是瀏覽器內(nèi)部的javascript暫時(shí)沒有這類api

穩(wěn)妥的，向后端發(fā)一個(gè)包，由后端判斷請(qǐng)求的來(lái)源是不是基站IP
另外還可以想辦法從連接速度，延遲等參數(shù)下手

懷中人 回答

我知道了。
on-success="(response, file, fileList) => { handleUrlSuccess(response, file, fileList, 233) }"

怣痛 回答

應(yīng)該是：dblclick。

乖乖噠 回答

哈哈哈，搗鼓了半天，一個(gè)css類搞定了。
原理是用border-image結(jié)合linear-gradient來(lái)搞

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>pretty border</title>
</head>
<style>
    .pretty-border {
        width: 400px;
        height: 400px;
        border: 1px solid #d4d4d4;
        border-width: 8px;
        border-image-slice: 8 8 0 0;
        border-image-source: linear-gradient(135deg,#5F58BE 1.5%,
            #F596B8 01.5%,#F596B8 03.0%,
            #460D55 03.0%,#460D55 04.5%,
            #7A313C 04.5%,#7A313C 06.0%,
            #0AE270 06.0%,#0AE270 07.5%,
            #5D4A50 07.5%,#5D4A50 09.0%,
            #88574B 09.0%,#88574B 10.5%,
            #7C35A6 10.5%,#7C35A6 12.0%,
            #D69BA1 12.0%,#D69BA1 13.5%,
            #6B3098 13.5%,#6B3098 15.0%,
            #306944 15.0%,#306944 16.5%,
            #8439AA 16.5%,#8439AA 18.0%,
            #60CE02 18.0%,#60CE02 19.5%,
            #F3E9BD 19.5%,#F3E9BD 21.0%,
            #F031FD 21.0%,#F031FD 22.5%,
            #972B2C 22.5%,#972B2C 24.0%,
            #E86B67 24.0%,#E86B67 25.5%,
            #22DFF8 25.5%,#22DFF8 27.0%,
            #9788BE 27.0%,#9788BE 28.5%,
            #4C094E 28.5%,#4C094E 30.0%,
            #603445 30.0%,#603445 31.5%,
            #A30704 31.5%,#A30704 33.0%,
            #9C7C8C 33.0%,#9C7C8C 34.5%,
            #EC717D 34.5%,#EC717D 36.0%,
            #543466 36.0%,#543466 37.5%,
            #B46659 37.5%,#B46659 39.0%,
            #40C1BE 39.0%,#40C1BE 40.5%,
            #DD9108 40.5%,#DD9108 42.0%,
            #BE4681 42.0%,#BE4681 43.5%,
            #8370A1 43.5%,#8370A1 45.0%,
            #6D5BCE 45.0%,#6D5BCE 46.5%,
            #9ECBAE 46.5%,#9ECBAE 48.0%,
            #2F0ADE 48.0%,#2F0ADE 51.0%,
            #5F58BE 51.0%,#5F58BE 52.5%,
            #F596B8 52.5%,#F596B8 54.0%,
            #460D55 54.0%,#460D55 55.5%,
            #7A313C 55.5%,#7A313C 57.0%,
            #0AE270 57.0%,#0AE270 58.5%,
            #5D4A50 58.5%,#5D4A50 60.0%,
            #88574B 60.0%,#88574B 61.5%,
            #7C35A6 61.5%,#7C35A6 63.0%,
            #D69BA1 63.0%,#D69BA1 64.5%,
            #6B3098 64.5%,#6B3098 66.0%,
            #306944 66.0%,#306944 67.5%,
            #8439AA 67.5%,#8439AA 69.0%,
            #60CE02 69.0%,#60CE02 70.5%,
            #F3E9BD 70.5%,#F3E9BD 72.0%,
            #F031FD 72.0%,#F031FD 73.5%,
            #972B2C 73.5%,#972B2C 75.0%,
            #E86B67 75.0%,#E86B67 76.5%,
            #22DFF8 76.5%,#22DFF8 78.0%,
            #9788BE 78.0%,#9788BE 79.5%,
            #4C094E 79.5%,#4C094E 81.0%,
            #603445 81.0%,#603445 82.5%,
            #A30704 82.5%,#A30704 84.0%,
            #9C7C8C 84.0%,#9C7C8C 85.5%,
            #EC717D 85.5%,#EC717D 87.0%,
            #543466 87.0%,#543466 88.5%,
            #B46659 88.5%,#B46659 90.0%,
            #40C1BE 90.0%,#40C1BE 91.5%,
            #DD9108 91.5%,#DD9108 93.0%,
            #BE4681 93.0%,#BE4681 94.5%,
            #8370A1 94.5%,#8370A1 96.0%,
            #6D5BCE 96.0%,#6D5BCE 97.5%,
            #9ECBAE 97.5%,#9ECBAE 99.0%,
            #2F0ADE 99.0%,#2F0ADE 100.0%            
        );
        

    }
</style>

<body>
    <div class="pretty-border"></div>
</body>

</html>

圖片描述

硬扛 回答

直接判斷是不是在開發(fā)環(huán)境不就行了

if(process.env.NODE_ENV === 'development') {
    const vConsole = new VConsole();
}
朽鹿 回答

有很多小問(wèn)題，比如

1        conn,address = server.accept()
2        rec_buf=conn.recv(1024)
3        //make some handle here, store this connection in global data
4        conn.setblocking(0)
5        conn.sendall("pass")

第 2 行將阻塞整個(gè)線程，直到對(duì)方發(fā)送數(shù)據(jù)，或連接斷開。
第 5 行因?yàn)闆]有預(yù)先判斷 conn 是否可寫，操作可能失敗。

建議使用 asyncio 改寫，參考

# -*- coding: utf-8 -*-
import asyncio


async def handle_server(reader, writer):
    data = await reader.readexactly(10)
    print('recv1: {}'.format(data.decode()))
    writer.write('pass'.encode())
    writer.close()


async def handle_client(reader, writer):
    data = await reader.readexactly(4)
    if data.decode() == 'OPEN':
        writer.write('success'.encode())
    writer.close()


def new_listener(loop, ip, port, handler):
    coro = asyncio.start_server(handler, ip, port, loop=loop)
    return loop.run_until_complete(coro)


if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    new_listener(loop, '127.0.0.1', 8322, handle_server),
    new_listener(loop, '127.0.0.1', 12355, handle_client),
    loop.run_forever()
老梗 回答

直接新窗口打開打印，默認(rèn)導(dǎo)出 pdf ，不是就把 html 打印出來(lái)了嗎

我不懂 回答

請(qǐng)參考如下示例

// 動(dòng)態(tài)加載數(shù)據(jù)點(diǎn) point
...

// 繪點(diǎn)數(shù)大于 20 時(shí)，（往左）移動(dòng)圖表
var series = chart.series[0],
    shift = series.data.length > 20;
    
// add the point
chart.series[0].addPoint(point, true, shift);

摘錄自
https://www.highcharts.com/do...

你可以寫一個(gè)watch去監(jiān)聽路由，路由信息變成路由2的路由信息的時(shí)候就把導(dǎo)航隱藏，否則就顯示，就可以了

終相守 回答

把你hellworld.vue這個(gè)文件得內(nèi)容拋出來(lái)看看。

何蘇葉 回答

你把記錄點(diǎn)亮標(biāo)簽的那個(gè) id 換成數(shù)組唄。每次點(diǎn)擊標(biāo)簽都像數(shù)組添加或者減少一個(gè) item.id

呆萌傻 回答

我知道了，我的bootstrap是4.0.0的，里面的Extra small不是col-xs-, 而是col-

帥到炸 回答

Github的markdown是服務(wù)端渲染的，具體處理流程可以看github/markup里的介紹。

  1. commonmarker：把markdown轉(zhuǎn)成html
  2. github/linguist：高亮代碼
  3. jch/html-pipeline：移除有害的html標(biāo)簽，加emoji、tasklist等等
維他命 回答

html所有標(biāo)簽?zāi)J(rèn)position:static?？赡苓@樣是為了防止其他樣式設(shè)置了其它定位屬性，將其強(qiáng)制還原為static而已，具體為什么這樣做的看具體情況。你可以認(rèn)為static沒有定位

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