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## 翻译进度 | ||
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5.4 [for 结构](eBook/05.4.md) | ||
5.5 [Break 与 continue](eBook/05.5.md) | ||
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## 支持本书 | ||
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## 啊哦,亲,你看得也太快了。。。还没翻译完呢 0 0 | ||
# 5.5 Break 与 continue | ||
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要不等到 **2014 年 6 月 10 日** 再来看看吧~~ | ||
您可以使用 break 语句重写 for2.go 的代码: | ||
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这里还有一些其它的学习资源噢~ | ||
Listing 5.10 [for3.go](examples/chapter_5/for3.go): | ||
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- [《Go编程基础》](https://github.com/Unknwon/go-fundamental-programming) | ||
- [《Go Web编程》](https://github.com/astaxie/build-web-application-with-golang) | ||
- [《Go名库讲解》](https://github.com/Unknwon/go-rock-libraries-showcases) | ||
``` | ||
for { | ||
i = i - 1 | ||
fmt.Printf(“The variable i is now: %d\n”, i) | ||
if i < 0 { | ||
break | ||
} | ||
} | ||
``` | ||
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神马?你说你不想学习?那好吧,去逛逛看看行情也行~ | ||
因此每次迭代都会对条件进行检查(i < 0),以此判断是否需要停止循环。如果退出条件满足,则使用 break 语句退出循环。 | ||
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- [Go Walker](https://gowalker.org) **Go 项目 API 文档在线浏览工具** | ||
- [Go 中国社区](http://bbs.go-china.org) | ||
- [Go语言学习园地](http://studygolang.com/) | ||
- [Golang中国](http://golangtc.com) | ||
一个 break 的作用范围为该语句出现后的最内部的结构,它可以被用于任何形式的 for 循环(计数器、条件判断等)。但在 switch 或 select 语句中(详见第 13 章),break 语句的作用结果是跳过整个代码块,执行后续的代码。 | ||
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# 5.5 Break 与 continue | ||
下面的示例中包含了嵌套的循环体(for4.go),break 只会退出最内层的循环: | ||
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Listing 5.11 [for4.go](examples/chapter_5/for4.go): | ||
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``` | ||
package main | ||
func main() { | ||
for i:=0; i<3; i++ { | ||
for j:=0; j<10; j++ { | ||
if j>5 { | ||
break | ||
} | ||
print(j) | ||
} | ||
print(" ") | ||
} | ||
} | ||
``` | ||
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输出: | ||
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012345 012345 012345 | ||
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关键字 continue 忽略剩余的循环体而直接进入下一次循环的过程,但不是无条件执行下一次循环,执行之前依旧需要满足循环的判断条件。 | ||
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Listing 5.12 [for5.go](examples/chapter_5/for5.go): | ||
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``` | ||
package main | ||
func main() { | ||
for i := 0; i < 10; i++ { | ||
if i == 5 { | ||
continue | ||
} | ||
print(i) | ||
print(" ") | ||
} | ||
} | ||
``` | ||
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输出: | ||
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``` | ||
0 1 2 3 4 6 7 8 9 | ||
5 is skipped | ||
``` | ||
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关键字 continue 只能被用于 for 循环中。 | ||
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## 链接 | ||
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- [目录](directory.md) | ||
- 上一节:[for 结构](05.4.md) | ||
- 下一节:[标签与 goto](05.6.md) |
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## 啊哦,亲,你看得也太快了。。。还没翻译完呢 0 0 | ||
|
||
要不等到 **2014 年 6 月 18 日** 再来看看吧~~ | ||
|
||
这里还有一些其它的学习资源噢~ | ||
|
||
- [《Go编程基础》](https://github.com/Unknwon/go-fundamental-programming) | ||
- [《Go Web编程》](https://github.com/astaxie/build-web-application-with-golang) | ||
- [《Go名库讲解》](https://github.com/Unknwon/go-rock-libraries-showcases) | ||
|
||
神马?你说你不想学习?那好吧,去逛逛看看行情也行~ | ||
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||
- [Go Walker](https://gowalker.org) **Go 项目 API 文档在线浏览工具** | ||
- [Go 中国社区](http://bbs.go-china.org) | ||
- [Go语言学习园地](http://studygolang.com/) | ||
- [Golang中国](http://golangtc.com) | ||
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# 5.6 标签与 goto |