[Enhancement] [input-number] 能对inputnumber增加插槽，方便操作吗？

[leleccccc]

Feature type: Enhancement

Details

• Enhanced component name: input-number

Description

能对inputnumber增加插槽，常见的操作，在input前后显示一些单位类似于el-input，可参考ant-desing-vue的https://www.antdv.com/components/input-number-cn

Additional comments

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