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原文地址：https://feinterview.poetries.top/blog/nextjs-tradingview-inte...
导语
TradingView 是全球最专业的金融图表可视化库之一，提供了功能强大的 K 线图、指标系统和技术分析工具。在金融行情类 Web 应用中，接入 TradingView 是提升用户体验的首选方案。
本文将基于实际项目代码，系统讲解如何在 Next.js 项目中接入 TradingView Charts，包括环境配置、Datafeed 数据馈送实现、自定义指标开发、主题样式定制、以及关键的性能优化策略。
一、项目准备与环境配置
1.1 获取 TradingView 图表库
TradingView 图表库需要从官方获取授权后下载。获取后将文件放置在项目的 public/static/charting_library 目录下：
public/
└── static/
└── charting_library/
├── charting_library.standalone.js
└── bundles/
├── *.js
└── *.css1.2 组件目录结构
src/components/Tradingview/
├── index.tsx # 主组件
├── datafeed.ts # 数据馈送实现
├── widgetOpts.tsx # 图表配置选项
├── widgetMethods.ts # 图表方法工具
├── theme.ts # 主题配置
├── constant.ts # 常量定义
└── customIndicators/ # 自定义指标
├── ma.ts
├── macd.ts
├── kdj.ts
└── customerRSI.ts二、核心组件实现
2.1 主组件：TradingView 图表容器
// src/components/Tradingview/index.tsx
import { useEffect, useRef, useState } from 'react'
import { widget } from 'public/static/charting_library'
import { useStores } from '@/context/mobxProvider'
import { STORAGE_GET_CHART_PROPS, STORAGE_REMOVE_CHART_PROPS, ThemeConst } from './constant'
import { ColorType, applyOverrides, createWatermarkLogo, setCSSCustomProperty, setChartStyleProperties } from './widgetMethods'
import getWidgetOpts from './widgetOpts'
import { useConfig } from '@/context/configProvider'
import { useRouter } from 'next/router'
import stores from '@/stores'
import { observer } from 'mobx-react'
import { STORAGE_SET_TRADINGVIEW_RESOLUTION } from '@/utils/storage'
const Tradingview = () => {
const chartContainerRef = useRef<HTMLDivElement>()
const { ws } = useStores()
const { isMobile, isPc } = useConfig()
const router = useRouter()
const [isChartLoading, setIsChartLoading] = useState(true)
const [loading, setLoading] = useState(true)
const query = {
...router.query,
...getInjectParams()
} as any
const datafeedParams = {
setActiveSymbolInfo: ws.setActiveSymbolInfo,
removeActiveSymbol: ws.removeActiveSymbol,
getDataFeedBarCallback: ws.getDataFeedBarCallback,
dataSourceCode: query.dataSourceCode
}
const params = {
symbol: (query.symbolName || 'BTCUSDT') as string,
locale: (query.locale || 'en') as LanguageCode,
theme: (query.theme || 'light') as ThemeName,
colorType: Number(query.colorType || 1) as ColorType,
isMobile,
bgGradientStartColor: query.bgGradientStartColor ? `#${query.bgGradientStartColor}` : '',
bgGradientEndColor: query.bgGradientEndColor ? `#${query.bgGradientEndColor}` : ''
}
useEffect(() => {
console.log('Tradingview组件初始化')
const showBottomMACD = Number(query.showBottomMACD || 1)
const chartType = (query.chartType !== '' ? Number(query.chartType || 1) : 1) as ChartStyle
const theme = params.theme
// 切换主题时清除本地缓存，避免颜色闪烁
const defaultBgColor = theme === 'dark' ? ThemeConst.black : ThemeConst.white
if (theme && defaultBgColor !== STORAGE_GET_CHART_PROPS('paneProperties.background')) {
STORAGE_REMOVE_CHART_PROPS()
}
const widgetOptions = getWidgetOpts(params, chartContainerRef.current, datafeedParams)
const tvWidget = new widget(widgetOptions)
setTimeout(() => {
setLoading(false)
}, 200)
tvWidget.onChartReady(async () => {
setIsChartLoading(false)
// 动态设置 CSS 变量
setCSSCustomProperty({ tvWidget, theme })
// 监听时间周期变化
tvWidget
.activeChart()
.onIntervalChanged()
.subscribe(null, (interval, timeframeObj) => {
// 记录当前分辨率
STORAGE_SET_TRADINGVIEW_RESOLUTION(interval)
// 日周月级别使用 UTC 时区，分钟级别使用上海时区
if (['D', 'W', 'M', 'Y'].some((item) => interval.endsWith(item))) {
tvWidget.activeChart().getTimezoneApi().setTimezone('Etc/UTC')
} else {
tvWidget.activeChart().getTimezoneApi().setTimezone('Asia/Shanghai')
}
ws.activeSymbolInfo.onResetCacheNeededCallback?.()
setTimeout(() => {
tvWidget.activeChart().resetData()
}, 100)
})
// 默认显示 MACD 指标
if (showBottomMACD === 1) {
tvWidget.activeChart().createStudy(
'MACD',
false,
false,
{ in_0: 12, in_1: 26, in_3: 'close', in_2: 9 },
{
'Histogram.color.3': 'rgba(197, 71, 71, 0.7188)',
showLabelsOnPriceScale: !!isPc
}
)
}
// 创建自定义 MA 指标
tvWidget.activeChart().createStudy('Customer Moving Average', false, false, {}, { showLabelsOnPriceScale: false })
// 动态切换主题
if (query.theme && !params.bgGradientStartColor) {
await tvWidget.changeTheme(theme)
}
// 设置 K 线柱样式（绿涨红跌 / 红涨绿跌）
setChartStyleProperties({ colorType: params.colorType, tvWidget })
// 应用覆盖样式
applyOverrides({
tvWidget,
chartType,
bgGradientStartColor: params.bgGradientStartColor,
bgGradientEndColor: params.bgGradientEndColor
})
// 添加水印 Logo
if (query.hideWatermarkLogo !== '0' && query.watermarkLogoUrl) {
createWatermarkLogo(query.watermarkLogoUrl)
}
// 记录实例
ws.setTvWidget(tvWidget)
window.tvWidget = tvWidget
})
return () => {
tvWidget.remove()
mitt.off('symbol_change')
}
}, [router.query])
return (
<div style={{ position: 'relative' }}>
<div id="tradingview" ref={chartContainerRef} style={{ height: 'calc(100vh - 60px)', opacity: loading ? 0 : 1 }} />
{isChartLoading && (
<div className="loading-container">
<div className="loading"></div>
</div>
)}
</div>
)
}
export default observer(Tradingview)2.2 Datafeed 数据馈送实现
Datafeed 是 TradingView 与后端数据交互的核心接口，需要实现以下方法：
// src/components/Tradingview/datafeed.ts
class DataFeedBase {
configuration: DatafeedConfiguration
constructor(props: Partial<ChartingLibraryWidgetOptions>) {
this.configuration = {
supports_time: true,
supports_timescale_marks: true,
supports_marks: true,
// 支持的分辨率
supported_resolutions: ['1', '5', '15', '30', '60', '240', '1D', '1W', '1M'],
intraday_multipliers: ['1', '5', '15', '30', '60', '240', '1D', '1W', '1M']
} as DatafeedConfiguration
this.setActiveSymbolInfo = props.setActiveSymbolInfo
this.removeActiveSymbol = props.removeActiveSymbol
this.getDataFeedBarCallback = props.getDataFeedBarCallback
this.isZh = props.locale === 'zh_TW'
}
// 图表初始化时调用，设置支持的配置
onReady(callback) {
setTimeout(() => {
callback(this.configuration)
}, 0)
}
// 解析品种信息
async resolveSymbol(symbolName, onSymbolResolvedCallback, onResolveErrorCallback, extension) {
const resolution = String(STORAGE_GET_TRADINGVIEW_RESOLUTION() || '')
const ENV = getEnv()
const urlPrefix = ENV.isApp ? getInjectParams().baseUrl : ''
let symbolInfo
if (!ENV.isApp) {
// HTTP 请求获取品种信息
const res = await request(`${urlPrefix}/api/trade-core/coreApi/symbols/symbol/detail?symbol=${symbolName}`)
symbolInfo = res?.data || {}
} else {
// APP 内获取 RN 传递的数据
symbolInfo = {
...(ENV?.injectParams?.symbolInfo || {}),
...(stores.global.symbolInfo || {})
}
}
const currentSymbol = {
...symbolInfo,
precision: symbolInfo?.symbolDecimal || 2,
description: symbolInfo?.remark || '',
exchange: '',
session: '24x7',
name: symbolInfo.symbol,
dataSourceCode: symbolInfo.dataSourceCode
}
const commonSymbolInfo = {
has_intraday: true,
has_daily: true,
has_weekly_and_monthly: true,
intraday_multipliers: this.configuration.intraday_multipliers,
supported_resolutions: this.configuration.supported_resolutions,
data_status: 'streaming',
format: 'price',
minmov: 1,
pricescale: Math.pow(10, currentSymbol.precision),
ticker: currentSymbol?.name
} as LibrarySymbolInfo
const currentSymbolInfo = {
...commonSymbolInfo,
...currentSymbol,
description: this.isZh ? currentSymbol.description : currentSymbol?.name,
exchange: this.isZh ? currentSymbol?.exchange : '',
session: '0000-0000|0000-0000:1234567;1',
timezone: ['D', 'W', 'M', 'Y'].some((item) => resolution.endsWith(item)) ? 'Etc/UTC' : 'Asia/Shanghai'
} as LibrarySymbolInfo
setTimeout(() => {
onSymbolResolvedCallback(currentSymbolInfo)
}, 0)
}
// 搜索品种
searchSymbols(userInput, exchange, symbolType, onResultReadyCallback) {
const keyword = userInput || ''
const resultArr = symbolInfoArr
.filter((item) => item.name.includes(keyword))
.map((item) => ({
symbol: item.name,
name: item.name,
full_name: `${item.name}`,
description: this.isZh ? item.description : item.name,
exchange: this.isZh ? item.exchange : '',
type: item.type,
ticker: item.name
}))
setTimeout(() => {
onResultReadyCallback(resultArr)
}, 0)
}
// 获取 K 线历史数据（核心方法）
getBars(symbolInfo, resolution, periodParams, onHistoryCallback, onErrorCallback) {
const { from, to, firstDataRequest, countBack } = periodParams
this.setActiveSymbolInfo({ symbolInfo, resolution })
this.getDataFeedBarCallback({
symbolInfo,
resolution,
from,
to,
countBack,
onHistoryCallback,
onErrorCallback,
firstDataRequest
})
}
// 订阅实时数据更新
subscribeBars(symbolInfo, resolution, onRealtimeCallback, subscriberUID, onResetCacheNeededCallback) {
this.setActiveSymbolInfo({
symbolInfo,
resolution,
onRealtimeCallback,
subscriberUID,
onResetCacheNeededCallback
})
mitt.on('symbol_change', () => {
onResetCacheNeededCallback()
})
}
// 取消订阅
unsubscribeBars(subscriberUID) {
this.removeActiveSymbol(subscriberUID)
}
}
export default DataFeedBase2.3 图表配置选项
// src/components/Tradingview/widgetOpts.tsx
import ma from './customIndicators/ma'
export default function getWidgetOpts(props, containerRef: any, datafeedParams: any): ChartingLibraryWidgetOptions {
const ENV = getEnv()
const theme = props.theme
const bgColor = theme === 'dark' ? ThemeConst.black : ThemeConst.white
const toolbar_bg = theme === 'dark' ? ThemeConst.black : '#fff'
// 禁用的功能
const disabled_features: ChartingLibraryFeatureset[] = [
'header_compare',
'symbol_search_hot_key',
'study_templates',
'header_saveload',
'save_shortcut',
'header_undo_redo',
'symbol_info',
'timeframes_toolbar',
'scales_date_format',
'header_fullscreen_button',
'display_market_status'
]
// 移动端额外禁用
if (props.isMobile) {
disabled_features.push(
'header_symbol_search',
'context_menus',
'show_chart_property_page',
'header_screenshot',
'adaptive_logo',
'left_toolbar'
)
}
const widgetOptions: ChartingLibraryWidgetOptions = {
fullscreen: true,
autosize: true,
timezone: 'exchange',
library_path: `${ENV.isApp ? '.' : ''}/static/charting_library/`,
datafeed: new DataFeedBase(datafeedParams),
symbol: props.symbol,
client_id: 'tradingview.com',
user_id: 'public_user_id',
locale: props.locale as LanguageCode,
interval: isPC() ? '15' : '1',
theme,
toolbar_bg,
container: containerRef,
symbol_search_request_delay: 1000,
auto_save_delay: 5,
study_count_limit: 5,
allow_symbol_change: true,
overrides: {
'paneProperties.background': `${bgColor}`
},
disabled_features,
enabled_features: ['hide_resolution_in_legend', 'display_legend_on_all_charts'],
custom_css_url: ENV.isApp ? `./styles/index.css` : `/static/styles/index.css`,
favorites: {
intervals: ['1', '5', '15', '30', '60']
},
custom_indicators_getter: function (PineJS) {
return Promise.resolve([ma(PineJS)])
},
loading_screen: {
backgroundColor: 'transparent',
foregroundColor: 'transparent'
}
}
return widgetOptions
}三、K线数据与WebSocket实时更新
3.1 WebSocket Store 实现
// src/stores/ws.ts
class WsStore {
tvWidget = null
@observable lastbar = {}
@observable activeSymbolInfo = {}
// HTTP 获取历史 K 线数据
getHttpHistoryBars = async (symbolInfo, resolution, from, to, countBack, firstDataRequest) => {
const klineType =
{
1: '1min',
5: '5min',
15: '15min',
30: '30min',
60: '60min',
240: '4hour',
'1D': '1day',
'1W': '1week',
'1M': '1mon'
}[resolution] || '1min'
const res = await request.get(`${url}/api/trade-market/marketApi/kline/symbol/klineList`, {
params: {
symbol: symbolInfo.symbol,
first: firstDataRequest,
current: 1,
size: document.documentElement.clientWidth >= 1200 ? 500 : 200,
klineType,
klineTime: to * 1000
}
})
const list = res?.data || []
return list
.map((item) => {
const [klineTime, open, high, low, close] = (item || '').split(',')
return {
open: Number(open),
close: Number(close),
high: Number(high),
low: Number(low),
time: resolution.includes('M') ? Number(klineTime) + 8 * 60 * 60 * 1000 : Number(klineTime)
}
})
.reverse()
}
// 更新最后一条 K 线
updateBar = (socketData, currentSymbol) => {
const precision = currentSymbol.precision
const lastBar = this.lastbar
const resolution = currentSymbol.resolution
const serverTime = socketData?.priceData?.id / 1000
const bid = socketData?.priceData?.buy
let rounded = serverTime
if (!isNaN(resolution) || resolution.includes('D')) {
const coeff = (resolution.includes('D') ? 1440 : Number(resolution)) * 60
rounded = Math.floor(serverTime / coeff) * coeff
}
const lastBarSec = lastBar?.time / 1000
if (rounded > lastBarSec) {
// 新建 K 线
return {
time: rounded * 1000,
open: Number(bid),
high: Number(bid),
low: Number(bid),
close: Number(bid)
}
} else {
// 更新当前 K 线
return {
time: lastBar.time,
open: lastBar.open,
high: Math.max(lastBar.high, Number(bid)),
low: Math.min(lastBar.low, Number(bid)),
close: Number(bid)
}
}
}
// 处理 WebSocket 消息
@action
message(res) {
if (res?.header?.msgId === 'symbol') {
const quoteBody = this.parseQuoteBodyData(res?.body)
if (quoteBody?.symbol === this.activeSymbolInfo?.symbolInfo?.name) {
const newLastBar = this.updateBar(quoteBody, {
resolution: this.activeSymbolInfo.resolution,
precision: this.activeSymbolInfo.symbolInfo.precision,
symbolInfo: this.activeSymbolInfo.symbolInfo
})
if (newLastBar) {
this.activeSymbolInfo.onRealtimeCallback?.(newLastBar)
this.lastbar = newLastBar
}
}
}
}
// Datafeed 回调
@action
getDataFeedBarCallback = (obj = {}) => {
const { symbolInfo, resolution, firstDataRequest, from, to, countBack, onHistoryCallback } = obj
this.getHttpHistoryBars(symbolInfo, resolution, from, to, countBack, firstDataRequest).then((bars) => {
if (bars?.length) {
onHistoryCallback(bars, { noData: false })
this.lastbar = bars.at(-1)
} else {
onHistoryCallback(bars, { noData: true })
}
})
}
}
export default wsStore四、自定义指标开发
4.1 自定义 MA 指标示例
// src/components/Tradingview/customIndicators/ma.ts
const customerMovingAverage = (PineJS: PineJS) => {
const indicators: CustomIndicator = {
name: 'Customer Moving Average',
metainfo: {
_metainfoVersion: 51,
id: 'Customer Moving Average@tv-basicstudies-1',
name: 'Customer Moving Average',
description: 'Customer Moving Average',
shortDescription: 'MA',
is_price_study: true,
isCustomIndicator: true,
format: { type: 'price' },
defaults: {
styles: {
plot_0: { linestyle: 0, linewidth: 1, plottype: 0, trackPrice: false, transparency: 35, visible: true, color: '#FF0000' },
plot_1: { linestyle: 0, linewidth: 1, plottype: 0, trackPrice: false, transparency: 35, visible: true, color: '#00FF00' },
plot_2: { linestyle: 0, linewidth: 1, plottype: 0, trackPrice: false, transparency: 35, visible: true, color: '#00FFFF' }
},
inputs: { in_0: 5, in_1: 10, in_2: 30 },
precision: 4
},
plots: [
{ id: 'plot_0', type: 'line' },
{ id: 'plot_1', type: 'line' },
{ id: 'plot_2', type: 'line' }
],
inputs: [
{ id: 'in_0', name: 'Length', defval: 9, type: 'integer', min: 1, max: 1e4 },
{ id: 'in_1', name: 'Length1', defval: 10, type: 'integer', min: 1, max: 1e4 },
{ id: 'in_2', name: 'Length2', defval: 30, type: 'integer', min: 1, max: 1e4 }
]
},
constructor: function (this: LibraryPineStudy<IPineStudyResult>) {
this.main = function (context, inputCallback) {
const close = PineJS.Std.close(context)
const len1 = inputCallback(0)
const len2 = inputCallback(1)
const len3 = inputCallback(2)
const value1 = PineJS.Std.sma(close, len1, context)
const value2 = PineJS.Std.sma(close, len2, context)
const value3 = PineJS.Std.sma(close, len3, context)
return [
{ value: value1, offset: 0 },
{ value: value2, offset: 0 },
{ value: value3, offset: 0 }
]
}
}
}
return indicators
}
export default customerMovingAverage五、主题与样式定制
5.1 主题配置
// src/components/Tradingview/theme.ts
export const getTradingviewThemeCssVar = (theme: ThemeName) => {
const primary = ThemeConst.primary
const textPrimary = ThemeConst.textPrimary
const isDark = theme === 'dark'
return {
'--tv-color-toolbar-button-text': '#7B7E80',
'--tv-color-toolbar-button-text-active': textPrimary,
'--tv-color-toolbar-button-text-active-hover': textPrimary,
'--tv-color-toolbar-toggle-button-background-active': primary,
'--tv-color-toolbar-toggle-button-background-active-hover': primary,
'--tv-color-popup-element-text-active': '#131722',
'--tv-color-popup-element-background-active': '#f0f3fa',
...(isDark ? { '--tv-color-pane-background': ThemeConst.black } : {})
}
}5.2 K线颜色与涨跌色设置
// src/components/Tradingview/widgetMethods.ts
export type ColorType = 1 | 2 // 1绿涨红跌 2红涨绿跌
export function setChartStyleProperties(props: { colorType: ColorType; tvWidget: IChartingLibraryWidget }) {
const { colorType, tvWidget } = props
const red = ThemeConst.red // #C54747
const green = ThemeConst.green // #45A48A
let upColor = Number(colorType) === 2 ? red : green
let downColor = Number(colorType) === 2 ? green : red
// 蜡烛图样式
tvWidget.chart().getSeries().setChartStyleProperties(1, {
upColor,
downColor,
wickUpColor: upColor,
wickDownColor: downColor,
borderUpColor: upColor,
borderDownColor: downColor
})
// 空心蜡烛图样式
tvWidget.chart().getSeries().setChartStyleProperties(9, {
upColor,
downColor,
wickUpColor: upColor,
wickDownColor: downColor,
borderUpColor: upColor,
borderDownColor: downColor
})
}六、性能优化策略
6.1 数据加载优化
// 1. 按需加载历史数据
getHttpHistoryBars = async (symbolInfo, resolution, from, to, countBack, firstDataRequest) => {
const size = document.documentElement.clientWidth >= 1200 ? 500 : 200
// 根据屏幕宽度调整加载数量，移动端减少请求数据量
}
// 2. 数据缓存策略
@action
getDataFeedBarCallback = (obj = {}) => {
const { firstDataRequest } = obj
if (firstDataRequest) {
// 首次请求完整数据
this.getHttpHistoryBars(symbolInfo, resolution, from, to, countBack, true)
} else {
// 后续请求只获取增量数据
this.getHttpHistoryBars(symbolInfo, resolution, from, this.lastBarTime, countBack, false)
}
}6.2 WebSocket 连接优化
// 使用 reconnecting-websocket 实现自动重连
this.socket = new ReconnectingWebSocket(wsUrl, ['WebSocket', token], {
minReconnectionDelay: 1,
connectionTimeout: 3000,
maxEnqueuedMessages: 0,
maxRetries: 10000
})
// 心跳保活
startHeartbeat() {
this.heartbeatInterval = setInterval(() => {
this.send({}, { msgId: 'heartbeat' })
}, 20000)
}6.3 图表渲染优化
// 1. 使用 loading 状态避免闪烁
const [loading, setLoading] = useState(true)
setTimeout(() => {
setLoading(false)
}, 200)
// 2. 延迟初始化避免阻塞
useEffect(() => {
// 延迟加载图表
setTimeout(() => {
const tvWidget = new widget(widgetOptions)
}, 100)
}, [])
// 3. 缓存主题配置
const defaultBgColor = theme === 'dark' ? ThemeConst.black : ThemeConst.white
if (theme && defaultBgColor !== STORAGE_GET_CHART_PROPS('paneProperties.background')) {
STORAGE_REMOVE_CHART_PROPS()
}6.4 内存管理与清理
useEffect(() => {
return () => {
// 组件卸载时清理
tvWidget.remove() // 销毁图表实例
mitt.off('symbol_change') // 取消事件订阅
this.stopHeartbeat() // 停止心跳
this.socket?.close() // 关闭 WebSocket
}
}, [])七、常见问题与解决方案
7.1 主题切换不生效
// 问题：切换主题后图表颜色不变
// 解决：清除本地缓存 + 动态调用 changeTheme
// 1. 切换主题时清除缓存
STORAGE_REMOVE_CHART_PROPS()
// 2. 动态切换主题
tvWidget.changeTheme(theme)
// 3. 设置 CSS 变量
setCSSCustomProperty({ tvWidget, theme })7.2 数据请求重复
// 问题：多次调用 getBars
// 解决：使用 lastBarTime 缓存截止时间
this.lastBarTime = bars[0]?.time / 1000
if (this.lastBarTime === bars[0]?.time / 1000) {
this.datafeedBarCallbackObj.onHistoryCallback([], { noData: true })
}7.3 移动端适配
// 移动端禁用多余功能
if (props.isMobile) {
disabled_features.push('header_symbol_search', 'context_menus', 'show_chart_property_page', 'header_screenshot', 'left_toolbar')
}
// 禁止双指缩放
document.body.addEventListener(
'touchstart',
(e) => {
if (e.touches.length > 1) {
e.preventDefault()
}
},
{ passive: false }
)八、完整调用示例
// src/pages/index.tsx
import Tradingview from '@/components/Tradingview'
export default function ChartPage() {
return (
<div>
<Tradingview />
</div>
)
}URL 参数说明：
symbolName: 交易品种，如 BTCUSDTtheme: 主题，light 或 darklocale: 语言，如 en、zh\_TWcolorType: 涨跌颜色，1 绿涨红跌，2 红涨绿跌chartType: 图表类型，1 蜡烛图、2 折线图等
总结
本文详细讲解了 Next.js 项目中接入 TradingView 图表的完整方案，涵盖了：
- 环境配置：类型定义、目录结构
- 核心实现：主组件、Datafeed、配置选项
- 数据交互：HTTP 历史数据 + WebSocket 实时更新
- 自定义开发：自定义指标、主题定制
- 性能优化：数据加载、WebSocket、渲染优化、内存管理
- 常见问题：主题切换、数据重复、移动端适配
通过以上方案，可以在 Next.js 项目中快速构建专业的金融图表应用。如需更高级的功能（如图表保存加载、自定义交易品种等），可以参考 TradingView 官方文档。
