According to the news on July 8th, the data from Tianyan check shows that recently, Huawei Technologies Co., Ltd. has applied for multiple trademarks related to HarmonyOS, including HUAWEI HarmonyOS, HarmonyOS Connected, HarmonyOS Linked, etc. The current status is waiting for substantive review.

Huawei Technologies Co., Ltd. was established in September 1987 with a registered capital of approximately 40.308 billion yuan. The legal representative is Zhao Minglu. The company’s business scope includes general business projects: program-controlled switches, transmission equipment, data communication equipment, broadband multimedia equipment, power supplies, and wireless communications. Equipment, microelectronic products, software, system integration engineering, etc., are wholly-owned by Huawei Investment Holdings Co., Ltd., one of the latter’s shareholders is Ren Zhengfei.

一句话概括：

就是下载真机系统对应的DeviceSupport放入现安装的Xcode（低版本）包里面，重启Xcode即可。

1.下载Xcode最新系统支持真机调试包 【Xcode 最新DeviceSupport下载链接 】

2.解压后放入xcode的 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport 目录中（没有对应版本的新建文件夹），如图

3.重启xcode（ 如果重启Xcode依然无法运行则重启手机就可以了）
楼主测试无需重启手机。

其它说明：

定位xcode目录，打开任意一个文件目录 然后 command + shift + g 粘贴
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

iOS uitextfield长度限制

[textUsername addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];

- (void)textFieldDidChange:(UITextField *)textField

{

    if (textField == textUsername) {

        if (textField.text.length > 9) {

            textField.text = [textField.text substringToIndex:9];

        }

    }

}

今年的国庆节和中秋节
这两个节日将会在同一天哦

具体放假安排：

国庆节、中秋节：10月1日至8日放假调休，共8天
9月27日（星期日）、10月10日（星期六）上班

受“闰四月”影响庚子鼠年内的农历节日端午节、七夕节、重阳节 在阳历中的对应日期相较去年来说都向后推迟18天！所以呢，中秋节假期也就出现了变化！

/*

• unicode编码转中文
  */

public static String decodeUnicode(String str) {
Pattern pattern = Pattern.compile("(\\u(\p{XDigit}{4}))");
Matcher matcher = pattern.matcher(str);
char ch;
while (matcher.find()) {

  ch = (char) Integer.parseInt(matcher.group(2), 16);
  str = str.replace(matcher.group(1), ch + "");

}
return str;
}