el-input 禁止回车

el-input 禁止回车

            <el-input
              type="textarea"
              :rows="9"
              placeholder="请输入内容"
              v-model="form.context"
              maxlength="100"
              show-word-limit
              onkeydown="if (event.keyCode===13){return false;}"
            >
            </el-input>