init

src/components/text-area/index.vue

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+<template>
+  <Input :value="value" type="textarea" :rows="4" placeholder="请输入内容" @on-blur="changeInput" />
+</template>
+
+<script>
+export default {
+  props: ['value'],
+  data() {
+    return {}
+  },
+  methods: {
+    changeInput(e) {
+      let value = e.currentTarget._value
+      this.$emit('input', value)
+    }
+  }
+}
+</script>
+
+<style lang="less" scoped>
+</style>