(css)vue 自定义背景 can’t resolve

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旧写法：

 background-image: url('@/assets/images/step-bg.jpg');
 background-size: 100% 100%; 

新写法：

background-image: url('~@/assets/images/step-bg.jpg');
 background-size: 100% 100%; 

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解决参考：https://blog.csdn.net/m0_37697423/article/details/93488057