docs: strconv 字符串转换

base/strconv/main.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+)
+
+func main() {
+	str := "10000"
+	fmt.Printf("%T %#v\n", str, str)
+
+	// 字符串转 int64
+	i, _ := strconv.ParseInt(str, 10, 64)
+	fmt.Printf("%T %#v\n", i, i)
+
+	// int 转 字符串
+	str = strconv.Itoa(int(i))
+	fmt.Printf("%T %#v\n", str, str)
+
+	// 字符串转 bool
+	str = "true"
+	b, _ := strconv.ParseBool(str)
+	fmt.Printf("%T %#v\n", b, b)
+}