iHTCboy

1. Application does not run in background

(键名：UIApplicationExistsOnSuspend)

自从iOS4.0之后，当你在应用程序执行的时候按下Home键，应用程序并不会中断目前的应用，而是放到后台去了。

因此希望使用者在按下Home键之后就要退出当前应用的请勾选这个选项。

 

iHTCboy

给数字加上千位分隔符，对于金钱的余额，甚至还需要加上￥或者$的符号：

- (NSString *)formattedNumber: (double)number {
    NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc]init];
    [numberFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4];
    [numberFormatter setNumberStyle:NSNumberFormatterDecimalStyle];
    NSString *numberString = [numberFormatter stringFromNumber:[NSNumber numberWithDouble:number]];
    NSLog(@"%@",numberString);
    return numberString;
}

iHTCboy

```
var videos = document.querySelectorAll("video");
for (var video of videos) {
    video.playbackRate = 1.5;
}
```

iHTCboy

#!/bin/bash

# 定义用到的变量
project_path=""

# 定义读取输入字符的函数
function getProjectPath() {
	# 输出换行，方便查看
	echo "================================================"
	# 监听输入并且赋值给变量

iHTCboy

#!/bin/bash

# 定义用到的变量
project_path=""

# 定义读取输入字符的函数
function getProjectPath() {
	# 输出换行，方便查看
	echo "================================================"
	# 监听输入并且赋值给变量

iHTCboy

 [ 
  "facebook.com",
  "twitter.com",
  "youtube.com",
  "google.com",
  "instagram.com",
  "linkedin.com",
  "plus.google.com",
  "gmpg.org",
  "pinterest.com",

iHTCboy

extension UIApplication {
    public var currentKeyWindow: UIWindow? {
        if #available(iOS 13.0, *) {
            if let window = connectedScenes
                .filter({ $0.activationState == .foregroundActive })
                .map({ $0 as? UIWindowScene })
                .compactMap({ $0 })
                .first?.windows
                .filter({ $0.isKeyWindow }).first {
                return window

iHTCboy

#!/usr/bin/env python3

import sqlite3

def write_file(data, filename):
	'''Convert binary data and write it on Hard Disk'''
	with open(filename, 'wb') as file:
		file.write(data)
	print(f"Stored blob data into:{filename}\n")
	

iHTCboy

OC
```
if ([[NSBundle mainBundle] pathForResource:@"embedded" ofType:@"mobileprovision"]) {
    // TestFlight
} else {
    // App Store (and Apple reviewers too)
}

BOOL isRunningTestFlightBeta = [[[[NSBundle mainBundle] appStoreReceiptURL] lastPathComponent] isEqualToString:@"sandboxReceipt"];
```