feat：初始化项目

src/views/About.vue

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+<template>
+  <div class="about">
+    <h1>This is an about page</h1>
+  </div>
+</template>

src/views/Home.vue

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+<template>
+  <div class="home">
+    <video autoplay></video>
+  </div>
+</template>
+
+<script>
+// @ is an alias to /src
+// import HelloWorld from "@/components/HelloWorld.vue";
+
+export default {
+  name: "Home",
+  components: {
+    // HelloWorld,
+  },
+  created() {
+    // this.init();
+    console.log("0000");
+  },
+  methods: {
+    init() {
+      navigator.getUserMedia(
+        { video: true, audio: true },
+        (localMediaStream) => {
+          const video = document.querySelector("video");
+          // video.srcObject = localMediaStream;
+          try {
+            video.srcObject = localMediaStream;
+          } catch (error) {
+            video.src = window.URL.createObjectURL(localMediaStream);
+          }
+          video.onloadedmetadata = (e) => {
+            // Ready to go. Do some stuff.
+            console.log("onloadedmetadata", e);
+          };
+        },
+        this.errorCallback
+      );
+    },
+    errorCallback(e) {
+      console.log("Error", e);
+    },
+  },
+};
+</script>