小编JkA*_*bro的帖子

我是 Blazor 的新手，我一直在尝试查找window.print()Blazor 中是否有任何等效项。我想知道是否有任何预先制作的组件/帮助程序，或者我是否需要从头开始创建一个？我已经搜索得足够多了，但找不到任何东西。

因此，我具有此网络摄像头功能，该功能可将base64 URI返回给我，并且由于需要图像对象，因此无法将其保存到AWS。有什么方法可以将URI转换为javascript对象吗？（确切地说，文件对象与文件浏览器输入标记返回的对象相同）

我想转换这个

data:image/jpeg;base64,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

进入这个

File {
   lastModified : 1481782908707
   lastModifiedDate : Thu Dec 15 2016 14:21:48 GMT+0800 (Malay Peninsula Standard Time)
   name : "sampleicon2.jpg"
   size :64847
   type : "image/jpeg"
   webkitRelativePath : ""
   __proto__ : File
}

可能吗？怎么样？提前致谢..

我必须将一个图标和文本传递给一个按钮，而这个按钮在一个组件中，并且该组件名称在我的项目中是 ReusableButton。我的问题是我还有两个按钮样式相同的按钮，但图标和文本不同。因此，如果我知道如何将图标和文本传递给按钮，那么我就可以恢复该按钮组件。我会分享我的代码，所以请检查一遍。不过，如果我不清楚我的疑问，请发表评论

这是 App.js

import React from 'react';
import './App.css';
import Navbar from './Navbar/Navbar'
import Button from './Button/Button'

function App() {
  return (
    <div className="App">
      <Navbar></Navbar>
      <Button></Button>
    </div>
  );
}

export default App;

这是 App.css

I didn't apply any css in App.css

这是 Navbar.js

import React, { Component } from 'react';
import './Navbar.css';


class Navbar extends Component {
    render() {
        return (
            <div className='container-fluid'>
                <div className='row'>
                    <div className='col-6'>
                        <nav className="logoclass navbar navbar-expand-lg navbar-light">
                            <a className='hyperlinkStyle' href='www.facebook.com'>
                                <img className='logoStyle' src='assets/images/logo.png' alt='logo'></img> …

我已经读过这个名为cache-busting的方法,它允许我们将版本参数添加到我们的js和css文件中,这样客户端就不必在每次更新时都清除缓存.但是,我没有阅读任何关于HTML的内容.

是否有任何方法允许我们加载最新的html文件更改而不清除缓存？

PS我不知道其他人,但我发现它是缓存模板的angularjs.无论如何我发布了自己的解决方案