freecodecamp step 46 为什么代码未审核通过？-灵析社区

 function goStore() { button1.innerText = "Buy 10 health (10 gold)"; button2.innerText = "Buy weapon (30 gold)"; button3.innerText = "Go to town square"; button1.onclick = buyHealth; button2.onclick = buyWeapon; button3.onclick = goTown; } 应该怎么修改呀，freecodecamp中的javascript问题