VSCode，使用时用户片段未显示$

问题描述

我希望这个用户快速插入调试命令，但是完成后，它不会显示“ $”符号。

import UIKit
import Flutter

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
    var methodChannel: FlutterMethodChannel!
  override func application(
    _ application: UIApplication,didFinishLaunchingWithOptions launchOptions:                 

[UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    
    let rootViewController : FlutterViewController = window?.rootViewController as! FlutterViewController
    methodChannel = FlutterMethodChannel(name: "com.example.channeltest/changetext",binaryMessenger: rootViewController as! FlutterBinaryMessenger)
    
    //This call would obvIoUsly be somewhere else in a real world example,but I'm just
    //testing if I can invoke the method in my dart code at all..
    methodChannel.invokeMethod("some_method_name",arguments: nil)
    
    GeneratedpluginRegistrant.register(with: self)
    return super.application(application,didFinishLaunchingWithOptions: launchOptions)
  }
}

使用 frole = # here I need to set a variable via the following message .family role MaosFamily post = { "_id": self.familydb.count_documents({}) + 1,"role": frole,"voice": None,"boss": ctx.author.id,"zam": None } self.shopdb.insert_one(post) 时得到以下信息：

"Debug MysqL": {
   "prefix": "debug","body": [
          "lib::$db->debug = true;"
        ],"description": "debug MysqL"
},

任何想法可能是什么问题？

解决方法

您需要投入其他美元来逃脱第一个美元：lib::$$db->debug = true;