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javascript detect client OS

        function detectOS() {
            var sUserAgent = navigator.userAgent;
            var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
            if (isWin) return "Windows"
            var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC") || (navigator.platform == "Macintosh") || (navigator.platform == "MacIntel");
            if (isMac) return "Mac";
            var isLinux = (String(navigator.platform).indexOf("Linux") > -1)||(String(navigator.platform).indexOf("Android") > -1)||((navigator.platform == "X11") && !isWin && !isMac);
            if (isLinux) return "Linux";
            return "other";
        }
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android hide actionbar

public class MainActivity extends Activity { ActionBar actionBar; //声明ActionBar @Override protected void onCreate( Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView( R .layout.activity_main); actionBar = getSupportActionBar(); //得 到ActionBar actionBar.hide(); //隐藏ActionBar } }
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go url encoding

func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits. func  QueryUnescape func QueryUnescape (s string ) ( string , error ) QueryUnescape does the inverse transformation of QueryEscape, converting %AB into the byte 0xAB and '+' into ' ' (space). It returns an error if any % is not followed by two hexadecimal digits.
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