项目初始化

.gitignore

@@ -0,0 +1 @@
+.idea

package.json

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+{
+  "name": "data_analysis",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}