How do you define string constants in Qt?

2 years ago
Noah Thompson
1 minute

In Qt, there are two ways to define string constants.

  1. Create a string constant and assign it to a QString object using the static methods fromUtf8() or fromLatin1() of the QString class. For example:
QString str = QString::fromUtf8("这是一个字符串常量");

– Or

QString str = QString::fromLatin1("这是一个字符串常量");
  1. Use C++ string literals directly and convert them to a QString object. For example:
QString str = "这是一个字符串常量";

Regardless of the method used, ultimately a QString object will be created to represent the string constant. This string constant can be manipulated and processed using the member functions of the QString object.

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