error: Execution was interrupted, reason: signal SIGABRT

c++ json解析时，

error: Execution was interrupted, reason: signal SIGABRT

const Json::Value points = root["shapes"];

if (points.isArray()) {

for (unsigned int i = 0; i < points.size(); i++) {

std::cout << " - [" << points[i][0].asFloat() << ", " << points[i][1].asFloat() << "]" << std::endl;

} }

报错error: Execution was interrupted, reason: signal SIGABRT. The process has been returned to the state before expression evaluation.

原因：root["shapes"] 是list列表，但是列表每一行是字典，但是用了 points[i][0] 列表的方式取值，导致了报错；

解决方法，points[i]是字典，就用字典方式取值就可以了