Node task1

Node/Task1/demo0/demo1/demo20.md

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+demo20

Node/Task1/demo0/demo1/demo21.md

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+demo21

Node/Task1/demo0/demo10.md

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+demo10

Node/Task1/demo0/demo11.md

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+demo11

Node/Task1/demo_new.md

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+demo0\demo1\demo20.md   2648df878bc2f2ef3075be7ec5807d2cecf82f42     1354aedfdc929da59fc6560c0cc72c7e
+demo0\demo1\demo21.md   e4bda9facae1b772a9475343a0767d1923ef8258     0eac74b953af3adb5b75b18f07540207
+demo0\demo10.md   4dfe34951f2359a6e0cb487c905ab692834b457b     43514a20c7801ebd4b1e6769939dd95f
+demo0\demo11.md   09e581c7eecc6c7e0a8e0212c83a75b784d6d113     cced040537f8b0eaba142cfcdad23760

Node/Task1/index.js

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+const crypto = require('crypto')
+const fs = require('fs')
+const path = require('path')
+
+function getSha1AndMD5(data) {
+    let sha = crypto.createHash('sha1').update(data.toString()).digest('hex');
+    let md5 = crypto.createHash('md5').update(data.toString()).digest('hex');
+    return sha + "     " + md5;
+}
+
+dirPath = process.argv.slice(2);
+
+if (fs.statSync(dirPath[0]).isFile()) {
+    getFileDetail(dirPath[0]);
+} else {
+    readDir(dirPath[0]);
+
+}
+
+function readDir(pathName) {
+    let files = fs.readdirSync(pathName);
+    if (files.length != 0) {
+        files.forEach(function(file) {
+            filepath = path.join(pathName, file);
+            if (fs.statSync(filepath).isFile()) {
+                fs.appendFileSync("demo_new.md", filepath + "   " + getFileDetail(filepath) + "\n");
+            } else {
+                readDir(filepath);
+            }
+        });
+    }
+}
+
+function getFileDetail(fileName) {
+    let response = fs.readFileSync(fileName).toString()
+    return getSha1AndMD5(response);
+}

Node/Task1/package.json

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+{
+  "name": "task1",
+  "version": "1.0.0",
+  "description": "Task 1",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "MIT"
+}