添加泛型Add函数,在指定位置插入元素 #508

	# Copyright 2021 ecodeclub
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: Format Go code

	on:
	push:
	branches: [ main,dev ]
	pull_request:
	branches: [ main,dev ]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: ">=1.20.0"

	- name: Install goimports
	run: go install golang.org/x/tools/cmd/goimports@latest

	- name: Check
	run: \|
	make check
	if [ -n "$(git status --porcelain)" ]; then
	echo >&2 "错误: 请在本地运行命令'make check'后再提交."
	exit 1
	fi

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