初始化商家端

components/benben-textarea/benben-textarea.vue

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+<template>
+	<view :class="className" >
+		<textarea
+        :class="inputClass"
+        @keyup="$emit('keyup', $event)"
+        v-model="inputValue"
+        @input="changeValue"
+        :placeholder="placeholder"
+        :confirm-type="confirmType"
+        :maxlength="maxlength"
+        :placeholder-style="placeholderStyle"
+        :auto-height="autoHeight" 
+        />
+    <slot v-if="showNum" name="number" v-bind:maxlength="maxlength" v-bind:inputLength="inputLength"></slot>
+	</view>
+</template>
+
+<script>
+	export default {
+    name: 'benben-textarea',
+    props: { 
+      'placeholderStyle' :'' ,
+      placeholder: '',
+      maxlength: Number,
+      confirmType:'',
+      autoHeight: '',
+      value: '',
+      showNum:false,
+      className:'',
+      inputClass: ''
+    },
+    //监听value
+    watch: {
+      value: {
+        handler(val) {
+          this.inputValue = val
+        },
+        immediate: true,
+      },
+    },
+    computed:{
+        inputLength(){
+            return this.value.length;
+        }
+    },
+    data() {
+        return {
+            inputValue:''
+        }
+    },
+    methods: {
+        changeValue(e) {
+          let value = e.detail.value
+          this.$emit('input', value)
+        },
+    },
+	}
+</script>
+
+<style>
+.r-top{
+}
+.r-top-t{
+	display: flex;
+	justify-content: flex-end;
+	font-weight:400;
+	line-height:20px;
+}
+</style>