更新软件工程、计算机网络、操作系统、并行计算内容添加试卷和知识点，增加网络信息安全分支，添加复习知识点 #92

	name: Check for File Duplicates

	on:
	push:

	pull_request:
	types: [opened, reopened]

	jobs:
	check_duplicates:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2

	- name: Install Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.x'

	- name: Check for Duplicate Files
	id: check_duplicates
	run: \|
	chmod +x ./check_duplicates.py
	python ./check_duplicates.py

	- name: Set Action Result
	if: steps.check_duplicates.outputs.has_duplicates == 'true'
	run: echo "Duplicate files found. The push is invalid."
	env:
	ACTION_RESULT: invalid

	- name: Set Output
	id: action_result
	if: env.ACTION_RESULT != ''
	run: echo "::set-output name=result::$ACTION_RESULT"

Provide feedback