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Finish: 02-constants - 常量与iota

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Wonder
2026-03-14 00:06:22 +08:00
parent a615561fb8
commit 14ef0fad75
1 changed files with 10 additions and 10 deletions
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stage01-basics/02-constants/main.go
+10 -10
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@@ -9,9 +9,9 @@ func exercise1() {
// GREETING: string，值为"你好，世界！" // GREETING: string，值为"你好，世界！"
// MAX_COUNT: int，值为1000 // MAX_COUNT: int，值为1000
// SUCCESS: bool，值为true // SUCCESS: bool，值为true
const GREETING string = ____ const GREETING string = "你好，世界！"
const MAX_COUNT int = ____ const MAX_COUNT int = 1000
const SUCCESS bool = ____ const SUCCESS bool = true
fmt.Printf("问候语: %s\n最大数量: %d\n成功状态: %t\n", GREETING, MAX_COUNT, SUCCESS) fmt.Printf("问候语: %s\n最大数量: %d\n成功状态: %t\n", GREETING, MAX_COUNT, SUCCESS)
} }
@@ -24,9 +24,9 @@ func exercise2() {
// HTTP_NOT_FOUND: int，值为404 // HTTP_NOT_FOUND: int，值为404
// HTTP_SERVER_ERROR: int，值为500 // HTTP_SERVER_ERROR: int，值为500
const ( const (
HTTP_OK = ____ HTTP_OK = 200
HTTP_NOT_FOUND = ____ HTTP_NOT_FOUND = 404
HTTP_SERVER_ERROR = ____ HTTP_SERVER_ERROR = 500
) )
fmt.Printf("HTTP状态码: OK=%d, NOT_FOUND=%d, SERVER_ERROR=%d\n", fmt.Printf("HTTP状态码: OK=%d, NOT_FOUND=%d, SERVER_ERROR=%d\n",
@@ -63,7 +63,7 @@ func exercise4() {
// LEVEL_4: 103 // LEVEL_4: 103
// 提示：第一个常量使用 ioda + 100 // 提示：第一个常量使用 ioda + 100
const ( const (
LEVEL_1 = iota + ____ LEVEL_1 = iota + 100
LEVEL_2 LEVEL_2
LEVEL_3 LEVEL_3
LEVEL_4 LEVEL_4
@@ -82,9 +82,9 @@ func exercise5() {
// GB: 1073741824 (1 << 30) // GB: 1073741824 (1 << 30)
const ( const (
_ = iota _ = iota
KB = 1 << ____ KB = 1 << (iota * 10)
MB = 1 << ____ MB
GB = 1 << ____ GB
) )
fmt.Printf("存储单位: KB=%d, MB=%d, GB=%d\n", KB, MB, GB) fmt.Printf("存储单位: KB=%d, MB=%d, GB=%d\n", KB, MB, GB)