android activity 设置禁止横竖屏Activity重建 重新初始化

<activity android:launchMode="singleTask"
android:configChanges="orientation|screenSize|keyboardHidden"
android:hardwareAccelerated="true" android:name=".main.web.MainActivity" />

核心属性：

orientation|screenSize|keyboardHidden

idea最新激活码

截止到2021年

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idea全家桶都可以使用

UIWebView(iOS8后，提供了WKWebView)算是在iOS中使用较多的一个控件，但Xcode并没有提供工具让我们调试WebView。那么如何调试WebView呢？Android用Chrome，iOS下当然就得用Safari啦。
IOS调试方法如下：

Mac笔记本safari浏览器设置

Safari显示Develop菜单
首先，我们需要在Safari显示Develop菜单。
打开Safari，点击Safari -> Peferences -> Advanced，勾选"Show Develop Menu in Menubar"。

模拟器调试

如果是在模拟器中调试的话：
1、在模拟器中打开应用，并点开需要调试WebView的页面；
2、在Safari中点Develop -> iOS Simulator -> XXX.app，弹出Web Inspector进行调试。

真机调试

如果想用真机调试的话（只能调试用Xcode编译安装的应用）：
1、先在设备上启用Web Inspector：点Settings -> Safari -> Advanced，启用Web Inspector；
2、打开应用，并点开需要调试WebView的页面；
3、在Safari中点Develop -> 设备名 -> xxx.app或者xxx.html，弹出Web Inspector进行调试。

replaceALL正斜杠 反斜杠代码

var toPath="/a/b";
toPath = toPath.replace(///g,"_");
结果：_a_b

1》要想定义字符串abc需要这样写var str = "a\b\c";
2》alert(str.replace(/\/g,"/"));将abc 修改为a/b/c
var str = "a\b\c";
alert(str);
alert(str.replace(/\/g,"/"));

js将字符串中所有反斜杠替换成正斜杠/
区分正斜杠与反斜杠：

正斜杠：http：//。http紧跟着的斜杠，离手输入最近的斜杠，shift中间斜杠。45度角斜杠。正斜杠不需要转义
反斜杠：回车与空格之间。程序表示时需要转义成\。
str.replace(/\/,/);

打印堆栈信息如下：

NSLog(@"－－－%@",[NSThread callStackSymbols]);
NSLog(@"－－－%@",[NSThread callStackReturnAddresses]);