std::string转qstring

std::string转qstring的方法有多种，可以使用QString的fromStdString函数或者fromLocal8Bit函数。对于包含中文的情况，可以使用fromLocal8Bit函数来避免乱码问题。下面是示例代码：

// 使用fromStdString函数
std::string str_original("Hello World");
QString qs = QString::fromStdString(str_original);

// 使用fromLocal8Bit函数
std::string str_original("中文测试");
QString qs = QString::fromLocal8Bit(str_original.c_str());

需要注意的是，如果字符串中包含特殊字符或者非ASCII字符，使用fromStdString函数可能会导致乱码问题。因此，在处理包含中文的情况下，建议使用fromLocal8Bit函数来保证字符的正确显示。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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