Qt 出现空指针错误：The inferior stopped because it received a signal from the Operating System
Qt 出现空指针错误：The inferior stopped because it received a signal from the Operating System
问题
程序运行的时候出现崩溃，并提示如下错误：
调试的时候运行到这一步出现错误
错误原因是出现了空指针，查看数据发现数组v[ ]是空的
解决办法
1.定义数组的时候定义空间大小，
v.resize();
2.对v[ ]进行赋值的时候用append()或者insert()
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