... Queue 重复操作
### 创建项目
```bash
~/Code/go via 🐹 v1.20.3 via 🅒 base
➜ mcd breadth_first_search
Code/go/breadth_first_search via 🐹 v1.20.3 via 🅒 base
➜ go mod init breadth_first_search
go: creating new go.mod: module breadth_first_search
Code/go/breadth_fi...
...ed
Public address of the key: 0x4852C36DeC855E487D46ddDD015A92612dE5Bf20
Path of the secret key file: data/keystore/UTC--2022-04-07T08-48-58.777243596Z--4852c36dec855e487d46dddd015a92612de5bf20
- You can share your public address with anyone. Others need it to interact with you.
- You must...