Method get

tools/env.js:27–37

(key, def = null)

            }
        }
        async get(key, def = null) {
            if (!this.isNode()) return def;
            try {
                const data = await this.fs.promises.readFile(this.bucket, "utf-8");
                const json = JSON.parse(data);
                return json.hasOwnProperty(key) ? json[key] : def;
            } catch (e) {
                this.log("❌ 读取bucket失败: " + e.message);
                return def;
            }
        }
        async set(key, value) {
            if (!this.isNode()) return;
            try {