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目录 Life is like a boat | 生如旅舟 Nobody knows who I really am, I've never felt this empty before. And if I ever need someone to come along, Who's gonna comfort me and keep me strong? We are all rowing the boat of fate The waves keep on coming and we can't escape But if we ever get lost on our way The waves will guide you through another day 哥特字体展示：\mathfrak{} \(\mathfrak{Nobody \ knows \ who\ I\ really\ am,}\) \(\mathfrak{I've\ never\ felt\ this\ empty\ before.}\) \(\mathfrak{And\ if\ I\ ever\ need\ someone\ to\ come\ along,}\) \(\mathfrak{Who's\ gonna\ comfort\ me\ and\ keep\ me\ strong?}\) \(

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have created a simple OpenGL application for Windows. It creates a window, then uses OpenGL commands to draw a triangle to it. This works as expected. Later on I would like to encapsulate my drawing code into a DLL, so that it can be used in a C# WinForms application to draw to a WinForm. To do so I moved the drawing code to a seperate class and thread. My idea is, that I can just "atttach" my class to any existing window and let my thread draw to it. Sadly things seem to be not that simple. Once I decouple window creation and drawing

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: This question already has an answer here: In a storyboard, how do I make a custom cell for use with multiple controllers? 6 answers Lets say in storyboard I have two table view controllers (A and B). In the A controller I did create cell prototypes with identifiers: VIENS and DU. In the B controller I need to use cell with identifier DU. I do not want to create same look and feel cell prototype in the B controller once again. Is here a way to reuse cell DU from A controller in the B controller? If yes then how to do it? 回答1: The best way to

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Is it possible to retrieve a default pattern for a given locale, without casting an object returned by DateFormat.get*Instance() to a SimpleDateFormat ? I understand, that in most cases everything will be OK, but there is a note in javadoc , here : "If you want even more control over the format or parsing, (or want to give your users more control), you can try casting the DateFormat you get from the factory methods to a SimpleDateFormat . This will work for the majority of countries; just remember to put it in a try block in case you

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I came to see that form file input field value cannot be set with javascript for security reasons. I just want to copy a FILE input to another form and post it, I searched for a work around and could not find anything, is it possible? UPDATE: my code: function prepareUpload( filevalue ){ document.getElementById('logo').value =filevalue; var mform = document.getElementById('sleeker'); ajaxUpload( mform,'<?php echo base_url(); ?>'); // a methods to upload... } <input class="input-file-upload" type="file" size="20" name="logodummy" id=

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have already looked in Stackoverflow but I can't get an answer. I want to create function that stop playing the sound in another ViewController. But when I clicked the stop button, it cracked and showed "EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)". This is my code. First ViewController import UIKit import AVFoundation class FirstVC : UIViewController { var metronome : AVAudioPlayer ! override func viewDidLoad () { super . viewDidLoad () do { let resourcePath1 = Bundle . main . path ( forResource : "music" , ofType :

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Angular 2 - How to navigate to another route using this.router.parent.navigate('/about'). It doesnt seem to work. I tried location.go("/about"); as that didnt work. basically once a user has logged in I want to redirect them to another page. Here is my code below: import { Component } from 'angular2/angular2' ; import { CORE_DIRECTIVES , FORM_DIRECTIVES } from 'angular2/angular2' ; import { Router } from 'angular2/router' ; import { AuthService } from '../../authService' ; //Model class User { constructor ( public email : string ,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: a.py from kivy.app import App from kivy.uix.dropdown import DropDown from kivy.lang import Builder class CustDrop(DropDown): def __init__(self, **kwargs): super(CustDrop, self).__init__( **kwargs) self.select('') kv_str = Builder.load_string(''' BoxLayout: orientation: 'vertical' BoxLayout: canvas.before: Rectangle: pos: self.pos size: self.size Color: rgb: (1,1,1) size_hint_y:1 Button: id: btn text: 'test' on_release: dropdown.open(self) #size_hint_y: None #height: '48dp' CustDrop: id: dropdown Button: text: 'Run another script' size_hint_y

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: My question is about filling animation one CAShapeLayer with another CAShapeLayer . So, I wrote some code that almost achieves my goal. I created a based layer and fill it with another. Code below: - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. _shapeLayer = [CAShapeLayer layer]; [self drawBackgroundLayer]; } // my main/backgound layer - (void)drawBackgroundLayer { _shapeLayer.frame = CGRectMake(0, 0, 250, 250); _shapeLayer.lineWidth = 3; _shapeLayer.strokeColor = [UIColor

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a situation where I need to check if a constructor (X) has another constructor (Y) in its prototype chain (or is Y itself). The quickest means to do this might be (new X()) instanceof Y . That isn't an option in this case because the constructors in question may throw if instantiated without valid arguments. The next approach I've considered is this: const doesInherit = ( A , B ) => { while ( A ) { if ( A === B ) return true ; A = Object . getPrototypeOf ( A ); } return false ; } That works, but I can't shake the sense that