AI代码解释 funcConcat4(args...interface{})string{a:="default-a"b:=5for_,arg:=range args{switcht:=arg.(type){casestring:a=tcaseint:b=tdefault:panic("Unknown argument")}}returnfmt.Sprintf("%s%d",a,b)} 相当泛用的方法,但是对于不同的类型就不可行了。
在下面的示例中,在runtime.concatstrings中花费了 530 毫秒,每行的成本显示在列表中将最昂贵的调用可视化为weblist.可视化分析数据的另一种方法是火焰图。火焰图允许您在特定的祖先路径中移动,因此您可以放大/缩小代码的特定部分。上游pprof 支持火焰图.
builder = strings.Builder{} } } } bash: go test -bench=. -test.benchmem goos: darwin goarch: amd64 pkg: benchmark BenchmarkConcatString-4 10000000 169 ns/op 530 B/op 0 allocs/op BenchmarkConcatBuffer-4 100000000 11.7 ns/op 2 B/op 0 allocs/op BenchmarkConcatBuilder-4 100000000 ...
简单谈谈Golang中的字符串与字节数组 前⾔ 字符串是 Go 语⾔中最常⽤的基础数据类型之⼀，虽然字符串往往都被看做是⼀个整体，但是实际上字符串是⼀⽚连续的内存空间，我们也可以将它理解成⼀个由字符组成的数组，Go 语⾔中另外⼀个与字符串关系⾮常密切的类型就是字节（Byte）了，相信各位...
Concat strings in two different ways (Golang Playground)go run cat.goModulo operation finds the remainder of division (Golang Playground)go run modulo.goSplit a string by another string and make an array from the result (Golang Playground)...
5.4 #39: Under-optimized string concatenation(如何高效的字符串拼接-strings.Builder) func concatV1(values []string) string { s := "" for _, value := range values { s += value } return s } func concatV2(values []string) string { sb := strings.Builder{} for _, value := range ...
Concat strings in two different ways (Golang Playground) go run cat.go Modulo operation finds the remainder of division (Golang Playground) go run modulo.go Split a string by another string and make an array from the result (Golang Playground) ...
b - Package b implements B+trees with delayed page split/concat and O(1) enumeration. Easy production of source code for B+trees specialized for user defined key and value types is supported by a simple text replace. btree - Package btree implements B-trees with fixed size keys, http:/...
b - Package b implements B+trees with delayed page split/concat and O(1) enumeration. Easy production of source code for B+trees specialized for user defined key and value types is supported by a simple text replace. btree - Package btree implements B-trees with fixed size keys, http://...
()) } func BenchmarkConcatStringByAdd(b *testing.B) { //与性能测试无关的代码 elems := []string{"1", "2", "3", "4", "5"} b.ResetTimer() for i := 0; i < b.N; i++ { //测试代码 ret := "" for _, elem := range elems { ret += elem } } b.StopTimer() //...