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// 添加通知
[[UIDevice currentDevice] setProximityMonitoringEnabled:YES];
    if ([UIDevice currentDevice].proximityMonitoringEnabled == YES)
        [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(proximitySensorChange:) 
                                                 name:UIDeviceProximityStateDidChangeNotification
                                               object:nil];

// 移除通知
if ([UIDevice currentDevice].proximityMonitoringEnabled == YES)

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#pragma mark - 

- (void)drawTestLine
{
    // test code : draw line between Beijing and Hangzhou
    CLLocation *location0 = [[CLLocation alloc] initWithLatitude:39.954245 longitude:116.312455];
    CLLocation *location1 = [[CLLocation alloc] initWithLatitude:30.247871 longitude:120.127683];
    NSArray *array = [NSArray arrayWithObjects:location0, location1, nil];
    [self drawLineWithLocationArray:array];
}

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# default.custom.yaml
# save it to: 
#   ~/.config/ibus/rime  (linux)
#   ~/Library/Rime       (macos)
#   %APPDATA%\Rime       (windows)

patch:
  schema_list:
    - schema: luna_pinyin          # 朙月拼音
    - schema: luna_pinyin_simp     # 朙月拼音 简化字模式

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int main(int argc, const char * argv[]) {
    /* 指针、引用和取值
    int *ptr;                   // 声明一个 int 指针
    int val = 1;                // 声明一个 int 值
    ptr = &val;                 // 为指针分配一个 int 值的引用
    int deref = *ptr;           // 对指针进行取值
    int nullVal;                // 默认值是 0
    int *nullPtr = &nullVal;
    
    printf("Hello, World!\n%p=%d\n%p=%d\n", ptr, deref, nullPtr, nullVal);

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//: Playground - noun: a place where people can play

import Foundation

var str = "Hello"
let data1 = str.data(using: String.Encoding.utf8)!

data1.withUnsafeBytes { (bytes: UnsafePointer<CChar>) -> Void in
    print(bytes.pointee)
    let arr = UnsafeBufferPointer(start: bytes, count: 5)

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#!/usr/bin/env python3
# -*- coding: utf8 -*-

if __name__ == "__main__":
    import glob, os, datetime, fileinput
    cwd = os.getcwd()
    files = [f for f in glob.glob(cwd + os.path.sep + "**/*.rst", recursive=True)]
    for f in files:
      modifieddate = datetime.datetime.fromtimestamp(os.path.getmtime(f))
      if not ':date:' in open(f).read():

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1. Install plugin Custom CSS and JS Loader
2. Open setting.json add lines below

    "vscode_custom_css.imports": ["file:///Users/Don/Documents/vscode/customtheme/vscode-vibrancy.css",
   "file:///Users/Don/Documents/vscode/customtheme/vscode-vibrancy.js"],
   "vscode_custom_css.policy": true,
   "terminal.integrated.rendererType": "dom"
   

3. CMD + Shift + p, reload custom css and js
4. Restart VSCode

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enum Rank: Int, CustomStringConvertible {
    case ace = 1
    case two, three, four, five, six, seven, eight, nine, ten
    case jack, queen, king

    func simpleDescription() -> String {
        switch self {
            case .ace:
                return "ace"
            case .jack:

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import Foundation

let names = ["Dong", "Chris", "Alex", "Ewa", "Barry", "Baniella"]

// 1.Origin
func forward(_ s1: String, _ s2: String) -> Bool { return s1 < s2 }
var orderNames = names.sorted(by: forward)

// 2.Closure writen as entired format
var reverseNames = names.sorted (by: { (s1: String, s2: String) -> Bool in

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#define BUZZER D6

void setup() {
  Serial.begin(115200);
  Serial.println("setup");
  
  pinMode(BUZZER, OUTPUT);
  digitalWrite(BUZZER,HIGH);
}