error: undefined reference to `_imp___ZN21QNetworkAccessManagerC1EP7QObject’
error: undefined reference to `_imp___ZN21QNetworkAccessManagerC1EP7QObject’
在.pro
文件加上即可
QT += core gui network
如果还得不到解决
可以看一下这个,是不是环境变量没弄好
https://blog.youkuaiyun.com/lsfreeing/article/details/85859050