package error_handle import ( "github.com/pkg/errors" ) // 1、自定义error结构体,并重写Error()方法 // 错误时返回自定义结构 type CustomError struct { Code int `json:"code"` // 业务码 TagMessage string `json:"message"` // 描述信息 } func (e *CustomError) Error() string { return ...
msg:message, returnwithStack{ err, callers(), Golang1.13版本error的新特性 Golang1.13版本借鉴了/pkg/error包,新增了如下函数,大大增强了Golang语言判断error类型的能力 errors.UnWrap() //与errors.Wrap()行为相反 //获取err链中的底层err funcUnwrap(errerror)error{ u,ok:=err.(interface{ Unwrap()err...
defer里面的变量必须与函数定义的返回值变量是同一个变量才会在最后的时候return defer自执行函数操作后的结果。 不满足这个条件,return的结果就不是defer自执行函数操作后的结果。return变量的类型要和函数的返回值类型保持一致,不然会报编译错误。 用变量的内存地址来理解,真的一切都很easy了. */ // int 类型默认...
QueueName: queueName, Exchange: exchange, Key: key, MqUrl: rmqURL, } } // Destroy 断开channel和connection func (r *Rabbit) Destroy() error { err := r.channel.Close() err = r.conn.Close() return err } // 错误处理函数 func (r *Rabbit) failOnErr(err error, msg string) { if e...
1，有返回值，有error 2，有返回值，无error 3，无返回值，无error 4，无返回值，有error 理论上，...
In the program above, we check whether the radius is less than zero in line no. 10. If so we return zero for the area along with the corresponding error message. If the radius is greater than 0, then the area is calculated andnilis returned as the error in line no. 13. ...
圆括号 1. 函数/方法 中的 传参 与 返回值 func add(x,y int) (int,error){ return x+y, nil } 2.结构体 中的方法 接收者 type Person struct { Name string } func (p *Person) String() stri...
func (c *bkClient) Do(r *http.Request) (*http.Response, error) { r.Header.Set("X-BK-TOKEN", token) return http.DefaultClient.Do(r) } // 创建自定义的 metric var ( // counter counter = prometheus.NewCounter(prometheus.CounterOpts{ ...
Compress the data, that is, the compression function and the custom encryption and tls|kcp can be used in combination, and the compression is divided into two parts. Part of it is local (-m) compression transmission, and part is whether the transmission with the upstream (-M) is compressed...
The problem with#38736is that it silently changes the behavior of programs on Windows. Whereexec.Command("prog")previously found and ran.\prog.exe, it would now either silently switch to aprog.exefrom the PATH (surprise!) or return an error thatprogcould not be found (even though it use...