invalid operands of types ‘＜unresolved overloaded function type＞‘ and ‘int‘ to binary ‘operator＜＜‘

invalid operands of types ‘＜unresolved overloaded function type＞‘ and ‘int‘ to binary ‘operator＜＜‘

main.cpp:7: error: invalid operands of types ‘’ and ‘int’ to binary ‘operator<<’ #define MIN(a,b) ((a)<(b)?(a):(b))
^

破案了。。。。我好傻。。低级不能再低级的错误====qDebug忘记加括号。。。。。