feat: 更新引入案例相关源码

code/02/fetchVideoStat.js

@@ -0,0 +1,25 @@
+(function () {
+    let api = window.__INITIAL_STATE__;
+    let stat = undefined;
+    try {
+        stat = api.videoData.stat;
+    } catch (e) {}
+
+    const cols = ["rank", "like", "coin", "collect", "share"];
+
+    let blankStat = {};
+    for (const col of cols) {
+        blankStat[col] = "";
+    }
+
+    if (stat === undefined) {
+        return blankStat;
+    }
+    return {
+        rank: stat.his_rank,
+        like: stat.like,
+        coin: stat.coin,
+        collect: stat.favorite,
+        share: stat.share,
+    };
+})();