1// 将 decode 的值转为 int 使用2funcmain(){3vardata=[]byte(`{"status": 200}`)4varresult map[string]interface{}56iferr:=json.Unmarshal(data,&result);err!=nil{7log.Fatalln(err)8}910varstatus=uint64(result["status"].(float64))11fmt.Println("Status value: ",status)12}...
AI代码解释 // runtime/signal_unix.gofuncsetThreadCPUProfiler(hz int32){mp:=getg().m// 获取当前协程绑定的的线程M...spec:=new(itimerspec)spec.it_value.setNsec(1+int64(fastrandn(uint32(1e9/hz)))spec.it_interval.setNsec(1e9/int64(hz))// 设置间隔为 100000000/100 纳秒 = 10msvartim...
since t.hasher may panic,// in which case we have not actually done a write. h.flags ^= hashWritingif h.buckets == nil { h.buckets = newobject(t.bucket) // newarray(t.bucket, 1) }again:// 省略 ...bucketloop:// 省略 ....
// 错误示例funcmain(){varsstring=nil// cannot use nil as type string in assignmentifs ==nil{// invalid operation: s == nil (mismatched types string and nil)s ="default"} }// 正确示例funcmain(){varsstring// 字符串类型的零值是空串 ""ifs ==""{ s ="default"} } 12. Array 类型的...
{ s.errh(s.line, s.col, "string not terminated") break } } // We leave CRs in the string since they are part of the // literal (even though they are not part of the literal // value). s.nlsemi = true s.lit = string(s.stopLit()) s.kind = StringLit s.tok = _Literal...
var array =[5]int{1,2,3,4,5} 切片表示一个拥有相同类型元素的可变长度的序列。切片是一种轻量级的数据结构,它有三个属性:指针、长度和容量。 切片不需要指定大小;切片是地址传递;切片可以通过数组来初始化,也可以通过内置函数make()初始化 。初始化时len=cap,在追加元素时如果容量cap不足时将按len的2倍...
map 的 key 为从 session 中获取的 RemoteAddress 即 Transaction Coordinator 的地址,value 为 session。这样,Client 端就可以通过 map 中的一个 session 来向 Transaction Coordinator 注册 Transaction Manager 和 Resource Manager 了。具体代码见 getty_client_session_manager.go。 Transaction Manager 和 Resource ...
slice := array[2:4] //只看头(从哪里切),不看尾,即顾头不顾尾... fmt.Println(cap(sli)) //10 fmt.Println(cap(slice)) //8 } Go 1.2 adds new syntax to allow a slicing operation to specify the capacity as well as the length. A second colon introduces the capacity value, which mus...
ifh.buckets ==nil{ h.buckets = newobject(t.bucket)// newarray(t.bucket, 1) } again: // 省略 ... bucketloop: // 省略 ... done: ifh.flags&hashWriting ==0{ fatal("concurrent map writes") } h.flags &^= hashWriting ift.indirectelem { ...
if($rv < 0){ print $DBI::errstr; } while(my @row = $sth->fetchrow_array()) { print "ID = ". $row[0] . "\n"; print "NAME = ". $row[1] ."\n"; } print "Operation done successfully\n"; $dbh->disconnect();