首次提交：初始化项目代码

strconv_vs_fmt.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+	"time"
+)
+
+func main() {
+	const loopCount = 10000000 // 1000万次循环，模拟高频场景
+
+	// 一、整数→字符串
+	// 1. fmt.Sprintf整数转字符串
+	fmtStart := time.Now()
+	for i := 0; i < loopCount; i++ {
+		_ = fmt.Sprintf("%d", i)
+	}
+	fmt.Printf("整数→字符串 fmt.Sprintf耗时：%v\n", time.Since(fmtStart))
+
+	// 2. strconv.Itoa整数转字符串
+	strconvStart := time.Now()
+	for i := 0; i < loopCount; i++ {
+		_ = strconv.Itoa(i)
+	}
+	fmt.Printf("整数→字符串 strconv.Itoa耗时：%v\n", time.Since(strconvStart))
+
+	// 二、浮点数→字符串
+	// 1. fmt.Sprintf浮点数转字符串
+	fmtStart2 := time.Now()
+	for i := 0; i < loopCount; i++ {
+		_ = fmt.Sprintf("%.2f", 3.14)
+	}
+	fmt.Printf("浮点数→字符串 fmt.Sprintf耗时：%v\n", time.Since(fmtStart2))
+
+	// 2. strconv.FormatFloat浮点数转字符串
+	strconvStart2 := time.Now()
+	for i := 0; i < loopCount; i++ {
+		_ = strconv.FormatFloat(3.14, 'f', 2, 64)
+	}
+	fmt.Printf("浮点数→字符串 strconv.FormatFloat耗时：%v\n", time.Since(strconvStart2))
+
+	// 三、布尔值→字符串
+	// 1. fmt.Sprintf布尔值转字符串
+	strconvStart3 := time.Now()
+	for i := 0; i < loopCount; i++ {
+		_ = fmt.Sprintf("%t", true)
+	}
+	fmt.Printf("布尔值→字符串 fmt.Sprintf耗时：%v\n", time.Since(strconvStart3))
+
+	// 2. fmt.FormatBool布尔值转字符串
+	fmtStart3 := time.Now()
+	for i := 0; i < loopCount; i++ {
+		_ = strconv.FormatBool(true)
+	}
+	fmt.Printf("布尔值→字符串 strconv.FormatBool耗时：%v\n", time.Since(fmtStart3))
+
+}