(SWIFT)错误:操场执行中止:错误:执行被中断，原因:EXC_BAD_INSTRUCTION(代码=EXC_I386_INVOP, subcode=0x0)

I'm getting this error code

我得到了这个错误代码

error: Playground execution aborted: error: Execution was interrupted, reason: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0). The process has been left at the point where it was interrupted, use "thread return -x" to return to the state before expression evaluation.erro