Qt 字符串QString arg()用法小结

Qt 字符串QString arg()用法总结

QString 有多种方法,我慢慢总结中~~~~~~~~~~~~

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1、QString::arg()//用字符串变量参数依次替代字符串中最小数值

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     QString str;     str = QString("Decimal 63 is %1 in hexadecimal")             .arg(63, 0, 16);     // str == "Decimal 63 is 3f in hexadecimal"     QLocale::setDefault(QLocale(QLocale::English, QLocale::UnitedStates));     str = QString("%1 %L2 %L3")             .arg(12345)             .arg(12345)             .arg(12345, 0, 16);     // str == "12345 12,345 3039"     //16进制显示，就忽略%L3的L

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