[@vue/compiler-sfc] the >>> and /deep/ combinators have been deprecated. Use :deep() instead.[@vue/compiler-sfc] ::v-deep usage as a combinator has been deprecated. Use :deep() instead.

这是个警告,意思是你原先用的深度选择器 deep 是已经被遗弃的写法,最好用新的写法来代替。如图:

深度选择器多用在组件或css样式的选择器嵌套较深的场景中,比如略微调整ElementUI的组件的样式的时候

虽说这个警告不会影响程序正常运行,但终究是个隐患,还是用新写法为好,如

旧的写法:/deep/ .el-input {

width: 110px;

}

新的写法:deep(.el-input) {

width: 110px;

}