vue3.0之DOM的$refs之運用

 ref="ruleFormsss"

2.0中則

this.$refs.ruleFormsss

3.0中

setup里面

 const ruleFormsss = ref(null);
const form: any = unref(ruleFormsss);
  return {
      ruleFormsss
    };

unref(ruleFormsss)的作用就是ref對象中ruleFormsss.value相同