The QScriptString class acts as a handle to "interned" strings in a QScriptEngine . 更多...
| 头： | #include <QScriptString> |
| qmake: | QT += script |
| Since: | Qt 4.4 |
该类在 Qt 4.4 引入。
| QScriptString (const QScriptString & other ) | |
| QScriptString () | |
| QScriptString & | operator= (const QScriptString & other ) |
| ~QScriptString () | |
| bool | isValid () const |
| quint32 | toArrayIndex (bool * ok = nullptr) const |
| QString | toString () const |
| QString | operator QString () const |
| bool | operator!= (const QScriptString & other ) const |
| bool | operator== (const QScriptString & other ) const |
QScriptString can be used to achieve faster (repeated) property getting/setting, and comparison of property names, of script objects.
To get a QScriptString representation of a string, pass the string to QScriptEngine::toStringHandle (). The typical usage pattern is to register one or more pre-defined strings when setting up your script environment, then subsequently use the relevant QScriptString as argument to e.g. QScriptValue::property ().
调用 toString () function to obtain the string that a QScriptString represents.
调用 toArrayIndex () function to convert a QScriptString to an array index. This is useful when using QScriptClass to implement array-like objects.
Constructs a new QScriptString that is a copy of other .
Constructs an invalid QScriptString.
赋值 other value to this QScriptString .
销毁此 QScriptString .
返回 true，若此 QScriptString is valid; otherwise returns false.
Attempts to convert this QScriptString to a Qt Script array index, and returns the result.
If a conversion error occurs, * ok is set to false; otherwise * ok is set to true.
该函数在 Qt 4.6 引入。
Returns the string that this QScriptString represents, or a null string if this QScriptString is not valid.
另请参阅 isValid ().
Returns the string that this QScriptString represents, or a null string if this QScriptString is not valid.
另请参阅 toString ().
返回 true，若此 QScriptString 不等于 other ；否则返回 false。
返回 true，若此 QScriptString 等于 other ；否则返回 false。
