fix chapter7

07_Event/readme.md

@@ -85,6 +85,8 @@ const transferEvents = await contract.queryFilter('事件名', 起始区块, 结
 
 4. 获取过去10个区块内的`Transfer`事件，并打印出1个。我们可以看到，`topics`中有3个数据，对应事件哈希，`from`，和`to`；而`data`中只有一个数据`amount`。另外，`ethers`还会根据`ABI`自动解析事件，结果显示在`args`成员中。
     ```js
+    // 获取过去10个区块内的Transfer事件
+    console.log("\n1. 获取过去10个区块内的Transfer事件，并打印出1个");
     // 得到当前block
     const block = await provider.getBlockNumber()
     console.log(`当前区块高度: ${block}`);

en/07_Event/readme.md

@@ -81,6 +81,8 @@ const transferEvents = await contract.queryFilter('event name', starting block,
 
 4. Retrieve the `Transfer` events within the last 10 blocks and print one event. We can see that the `topics` contain three pieces of data corresponding to the event hash, the `from` address, and the `to` address, while the `data` only contains one piece of data, which is the `amount`. Additionally, `ethers` automatically parses the event based on the ABI, and the parsed event is shown in the `args` member.
     ```js
+    // Get Transfer events within the past 10 blocks
+    console.log("\n1. Get Transfer events within the past 10 blocks and print 1 event");
     // Get the current block
     const block = await provider.getBlockNumber()
     console.log(`Current block number: ${block}`);