vue+element文本域设置自适应和默认高度

<el-form-item label="私密" :label-width="'140px'" prop="private_key">

<el-input

size="small"

v-model="form.private_key"

placeholder="请填写"

type="textarea"

:autosize="{ minRows: 4, maxRows: 40}"

></el-input>

</el-form-item>