Qt:从 QChar 获取 ASCII 代码

Question

我需要从 QChar 获取 ASCII 代码。

在 Qt 5.2 中，QChar::ToAscii 已被删除。

这是我的代码。如何获取 ASCII 码？

QString data;
int key;
key = data.at(i);

Answer 1

用途:

char QChar::toLatin1() const

来自文档:

Returns the Latin-1 character equivalent to the QChar, or 0. This is mainly useful for non-internationalized software.

从Qt5.0版本开始

char QChar::toAscii() const

This function is deprecated. Returns the Latin-1 character value of the QChar, or 0 if the character is not representable.

示例

QString test("test");
QChar c = test.at(0);
int v_latin = c.toLatin1();
int v_ascii = c.toAscii();
qDebug() << v_latin << " " << v_ascii;

输出:

116   116