OUTER_LOOP: for i := 0; i < 3; i++ { for j := 0; j < 3; j++ { if j == 1 { continue OUTER_LOOP // 跳过外层循环的当前迭代 } } } 3. 替代复杂的条件判断 简化多层嵌套中的控制逻辑。 避免滥用标签 过度使用goto或标签可能导致“面条代码”(Spaghetti Code
输出的结果是打印奇数,这是因为在for循环中存在条件选择,如果i变量的值的余数2等于零或i的值是偶数,则继续执行意味着继续 执行下一个循环,这样就不会输出i的值。 可以使用嵌套的for循环。 可以在此代码中看到嵌套的for循环用法示例。 packagemainimport"fmt"funcmain(){fori:=0;i<5;i++{//outer loopfmt.P...
line after for loop 1. 2. continue continue 语句用于跳过 for 循环的当前迭代。在 continue 语句之后,for 循环中出现的所有代码都不会在当前迭代中执行。循环将继续到下一个迭代。 让我们编写一个程序,使用 continue 打印从 1 到 10 的所有奇数 package main import ( "fmt" ) func main() { for i :...
// use break/continue with label on outer loop here: for i := 0; i for j := i + 1; j if i == 0 { continue here } fmt.Println(j) if j == 2 { break } } } there: for i := 0; i for j := i + 1; j if j == 1 { continue } fmt.Println(j) if j == 2 {...
Outer Loop:Iterate through the list multiple times. Inner Loop:Compare each pair of adjacent elements. Swap Elements:If the first element is greater than the second, swap them. Repeat:Continue the process until no swaps are needed, indicating that the list is sorted. ...
But if you were to do much more, you should probably put that inner loop in a function and call it instead. You can then continue the outer loop based on the result. That will be cleaner code yet, and well-named functions make the intent of a block of code much more explicit. But...
In nested loops,breakwill terminate only the innermost loop. To break out of all loops, you can use a labeled break: </> Copy packagemainimport"fmt"funcmain(){outer:fori:=1;i<=3;i++{forj:=1;j<=3;j++{ifi==2&&j==2{fmt.Println("Breaking out of nested loops.")breakouter// ...
In the program above, I have added abreakinside the innerforloop wheniandjare equal in line no. 10. This willbreakonly from the inner for loop and the outer loop will continue. This program will print. i = 0 , j = 1i = 0 , j = 2i = 0 , j = 3i = 1 , j = 1i = 2...
{ // The P got a new worker. // Exit this worker. return false } } return true }, unsafe.Pointer(park), "GC worker (idle)", traceEvGoBlock, 0) // 检查P的gcBgMarkWorker是否和当前的G一致, 不一致时结束当前的任务 // Loop until the P dies and disassociates this // worker (the...
接下来讲解go中的三色GC的实现原理.---基于1.9.2版本 基础概念 内存结构 go在程序启动时会分配一块虚拟内存地址是连续的内存, 结构如下: 这一块内存分为了3个区域, 在X64上大小分别是512M, 16G和512G, 它们的作用如下 arena arena区域就是我们通常说的heap, go从heap分配的内存都在这个区域中. ...