1// 请求失败造成 panic2funcmain(){3resp,err:=http.Get("https://api.ipify.org?format=json")4defer resp.Body.Close()// resp 可能为 nil,不能读取 Body5iferr!=nil{6fmt.Println(err)7return8}910body,err:=ioutil.ReadAll(resp.Body)11checkError(err)1213fmt.Println(string(body))14}1516fu...
func FILE() string { _, file, _, _ := runtime.Caller(1) return file } // __LINE__ returns the line number at which the function was invoked func LINE() int { _, _, line, _ := runtime.Caller(1) return line } 在同一需求场景下,FILE和LINE分别调用了一次能耗较高的runtime.Call...
type IRoutes interface { Use(...HandlerFunc) IRoutes Handle(string, string, ...Handler...
checkdead will call timejump. stopm() goto top } lock(&sched.lock) _p_ = pidleget() // 查找是否有空闲的 P 可以来就绪的 goroutine unlock(&sched.lock) if _p_ == nil { injectglist(&list) // 如果当前没有空闲的 P,则把就绪的 goroutine 放入全局调度队列等待被执行...
linters:disable-all:true#关闭所有enable:# 开启下列linter-megacheck-govet 当然也可以反过来开启所有,关闭某些linter,但是开启所有不建议。各个 linter 得详细配置和默认开启得 linter 详见官网 linters:enable-all:truedisable:-maligned-prealloc 其它设置 ...
近期对nmap的操作系统识别功能造了个轮子,用golang实现了一遍,想未来能用于扫描器,资产发现/管理系统,网络空间引擎中。 造轮子也是一次深入理解它原理的过程,造完轮子后感觉到所有代码尽在我掌握之中,之后大规模扫描测试就可以 以最有效率,发最小包,绕过防火墙的方式进行集成,也能轻易的进行扩展。
fmt.Printf("%s Message topic:%q partition:%d offset:%d value:%s\n", h.name, msg.Topic, msg.Partition, msg.Offset, string(msg.Value)) // 查mysql去重 if check(msg) { // 插入mysql insertToMysql() } // 标记,sarama会自动进行提交,默认间隔1秒 ...
The code below shows the most basic use of the type checker to check the hello, world program, supplied as a string. Later examples will be variations on this one, and we'll often omit boilerplate details such as parsing. To check out and build the examples, run go get golang.org/x...
-##is the number of elements - e.g.example in((X)$, enum_1, ...enum_n)Check if the first parameter is one of the enumerated parameters Operator priority(high -> low): ()!boolfloat64stringnil */% +- <<=>>= ==!= &&
Weight Select a upstream according to the weight and number of connections of each upstreamprompt:The load balancing check interval can be set by --lb-retrytime in milliseconds. The load balancing connection timeout can be set by --lb-timeout in milliseconds. If the load balancing policy is...