小编tot*_*oti的帖子

如何动态更改 Chrome 扩展程序图标？我当前扩展的图标名为 icon.png ，与所有 js/manifest 位于同一目录中，为了将其更改为 icon2.png 我尝试过：

示例内容.js

console.log("content script is running..") //shows in console
chrome.pageAction.setIcon({tabId: tab.id, path: 'icon2.png'}); //nothing

清单.json：

{
    "manifest_version": 2,
    "name": "B",
    "version": "0.1",
    "options_page": "options.html",
    "background" : {
        "scripts": ["background.js"]
    },
    "permissions": [
        "storage",
        "tabs"
    ],

    "browser_action": {
        "default_icon": {
            "16": "icon.png",
            "32": "icon2.png"
        },
        "default_popup": "popup.html"
    },

    "content_scripts": [
        {
            "matches": [
                "<all_urls>"
            ],
            "js": ["content.js"],
            "run_at": "document_end"
        }
    ]

}

为什么这不起作用？

我是 node 的新手，并试图编写发送原始十六进制数据的最小 tcp 客户端。如果我应该使用缓冲区，那么如何使用？如果我可以将十六进制作为字符串发送，那么如何发送？非常感谢指导！

继承人当前的，不工作的代码：

var hexVal = `504f5354202f6c696e653320485454502f312e310d0a557365722d4167656e743a206e6f64652d6170700d0a4163636570743a202a2f2a0d0a686f73743a203139322e3136382e31342e39343a333030300d0a636f6e74656e742d747970653a206170706c69636174696f6e2f6a736f6e0d0a636f6e74656e742d6c656e6774683a2031390d0a436f6e6e656374696f6e3a20636c6f73650d0a0d0a227b757365726e616d653a202776616c277d22` // my raw hex, unwantendly sent as string


var net = require('net');

var HOST = '192.168.14.94';
var PORT = 3000;

var client = new net.Socket();
client.connect(PORT, HOST, function() {
    console.log('CONNECTED TO: ' + HOST + ':' + PORT);
    client.write(hexVal);
});

client.on('data', function(data) { // 'data' is an event handler for the client socket, what the server sent
    console.log('DATA: ' + data);
    client.destroy(); // Close the client socket completely

});

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