From 86c554908e6ecd2ad49eed3f709b7710710f43f8 Mon Sep 17 00:00:00 2001 From: wonder Date: Sat, 14 Mar 2026 18:40:01 +0800 Subject: [PATCH] =?UTF-8?q?Finish:=2003-datatypes=20-=20=E6=95=B0=E6=8D=AE?= =?UTF-8?q?=E7=B1=BB=E5=9E=8B=E8=BD=AC=E6=8D=A2?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- stage01-basics/03-datatypes/main.go | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/stage01-basics/03-datatypes/main.go b/stage01-basics/03-datatypes/main.go index 15f3a1d..5664bf8 100644 --- a/stage01-basics/03-datatypes/main.go +++ b/stage01-basics/03-datatypes/main.go @@ -13,10 +13,10 @@ func exercise1() { var floatValue float64 = 3.14159 // 将intValue转换为float64类型，赋值给result1 - result1 := ____ + result1 := float64(intValue) // 将floatValue转换为int类型，赋值给result2（注意：会丢失小数部分） - result2 := ____ + result2 := int(floatValue) fmt.Printf("int → float64: %d → %.2f\n", intValue, result1) fmt.Printf("float64 → int: %.5f → %d\n", floatValue, result2) @@ -27,7 +27,7 @@ func exercise2() { // 将字符串"123"转换为整数类型，使用strconv.Atoi ageStr := "123" - age, err := strconv.____ + age, err := strconv.Atoi(ageStr) fmt.Printf("字符串 '%s' 转换为整数: %d (错误: %v)\n", ageStr, age, err) } @@ -37,7 +37,7 @@ func exercise3() { // 将整数456转换为字符串，使用strconv.Itoa score := 456 - scoreStr := strconv.____ + scoreStr := strconv.Itoa(score) fmt.Printf("整数 %d 转换为字符串: '%s'\n", score, scoreStr) } @@ -48,7 +48,7 @@ func exercise4() { // 将字符串"98.76"转换为float64类型 // 使用strconv.ParseFloat，第二个参数是位数（64表示float64） priceStr := "98.76" - price, err := strconv.____ + price, err := strconv.ParseFloat(priceStr, 64) fmt.Printf("字符串 '%s' 转换为float64: %.2f (错误: %v)\n", priceStr, price, err) } @@ -61,10 +61,10 @@ func exercise5() { var runeVal rune = 'A' // 将byteVal转换为对应的字符 - char1 := ____(byteVal) + char1 := byte(byteVal) // 将runeVal转换为字符串 - char2 := ____(runeVal) + char2 := string(runeVal) fmt.Printf("byte(65) → 字符: '%c'\n", char1) fmt.Printf("rune('A') → 字符串: '%s'\n", char2) @@ -77,7 +77,7 @@ func exercise6() { var b float64 = 3.5 // 计算a和b的和，需要类型转换 - sum := ____ + b + sum := float64(a) + b fmt.Printf("%d + %.1f = %.1f\n", a, b, sum) }