字符串

Signed-off-by: Tinywan <756684177@qq.com>

Author: Tinywan

demo/interface/demo01.go

@@ -0,0 +1,10 @@
+package main
+
+// interface define 元音
+type VowelsFinder interface {
+	FindVowels() []rune
+}
+
+func main() {
+
+}

demo/string/byte.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	byteSlice := []byte{0x43, 0x61, 0x66, 0xC3, 0xA9}
+	str := string(byteSlice)
+	fmt.Println(str)
+
+	byteSlice2 := []byte{67, 97, 102, 195, 169} //decimal equivalent of {'\x43', '\x61', '\x66', '\xC3', '\xA9'}
+	str2 := string(byteSlice2)
+	fmt.Println(str2)
+
+	runeSlice := []rune{0x0053, 0x0065, 0x00f1, 0x006f, 0x0072}
+	str3 := string(runeSlice)
+	fmt.Println(str3)
+}

demo/string/length.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+func length(s string) {
+	fmt.Printf("length of %s is %d\n", s, utf8.RuneCountInString(s))
+}
+
+func main() {
+	word1 := "Señor"
+	length(word1)
+	word2 := "Pets"
+	length(word2)
+}

demo/string/rune.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"fmt"
+)
+
+// 打印字符串中的字节
+func printBytes(s string) {
+	for i := 0; i < len(s); i++ {
+		fmt.Printf("%x ", s[i])
+	}
+}
+
+// 打印字符串中的字符
+func printChars(s string) {
+	runes := []rune(s)
+	for i := 0; i < len(runes); i++ {
+		fmt.Printf("%c", runes[i])
+	}
+}
+
+func main() {
+	name := "Hello World"
+	printBytes(name)
+	fmt.Printf("\n")
+	printChars(name)
+
+	fmt.Printf("\n")
+
+	// 特殊字符
+	name = "Señor"
+	printBytes(name)
+	fmt.Printf("\n")
+	printChars(name)
+
+	// 打印汉字
+	fmt.Printf("\n")
+	name = "萬少波"
+	printBytes(name)
+	fmt.Printf("\n")
+	printChars(name)
+}