Qt开发坑总结

• Qt中QString::toStdString().c_str() 偶尔存在乱码
  https://blog.csdn.net/u012861705/article/details/126740194

假设

QString str = "string";

const char* c = str.toStdString().c_str()单步调试显示的结果可能会是'\0'

而当我这样写时

std::string s = str.toStdString(); 

const char* c = s.c_str();

 c 是"string"

• UI卡顿
  https://blog.csdn.net/u011186532/article/details/126376190