qt day1

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1、The time you come across with problem you can not figure out , try the "Help" module ,instead of search it on line armless.
*2.Can not find the Qt cmd "qt5.5.1 for desktop" and "android gcc" in computer of company;
#3.ecmascript/regular Expression
4.you best add semicolon at the end of each sentence
#5.== and != may perform type coercion ,use !== or === to avoid it;
6.string type's variable just can be read only;
*7.Qt.locale("zh_CN");
8.Once you have finish the usage of specific object ,just set "Null"to it;
9.eval()can not compile string type,if so ,it just cast the string to you .
#10.RFC4627 you can refer to it to learn something about json data transform formate;
#11.json
12.QQuickView the control of window is in cpp file; but for QQmlApplicationEngine,the qml file own the full control.
#13.xerox
#14.OpenGL
*15.Qt.quit();
#16.elideMode

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