Golang之字符串操作（反转中英文字符串）
package mainimport (
"fmt"
)
func testString() {
var str = "hello" fmt.Printf(
"str=%c len(str)=%d\n", str, len(str))
for index, val := range str { fmt.Printf(
"str[%d]=%c\n", index, val) }
//str = '0'//fmt.Println("after modify:", str) var byteSlice []byte
byteSlice = []byte(str)
byteSlice = '0'
str = string(byteSlice)
fmt.Println("after modify:", str)
fmt.Printf("len(str)=%d\n", len(str))
str = "hello, 少林之巅"
fmt.Printf("len(str)=%d\n", len(str))
str = "中问123"
fmt.Printf("last:len(str)=%d\n", len(str))
var b rune = '中'
fmt.Printf("b=%c\n", b)
var runeSlice []rune
runeSlice = []rune(str)
fmt.Printf("str 长度:%d, len(str)=%d\n", len(runeSlice), len(str))
}
func testReverseStringV1() {
var str = "hello中文 "
var bytes []byte = []byte(str)
for i := 0; i < len(str)/2; i++ {
tmp := bytes
bytes = bytes
bytes = tmp
}
str = string(bytes)
fmt.Println(str)
}
func testReverseStringV2() {
var str = "hello中文 "
var r []rune = []rune(str)
for i := 0; i < len(r)/2; i++ {
tmp := r
r = r
r = tmp
}
str = string(r)
fmt.Println(str)
}
func testHuiWen() {
var str = "上海自来水来自海上"
var r []rune = []rune(str)
for i := 0; i < len(r)/2; i++ {
tmp := r
r = r
r = tmp
}
str2 := string(r)
if str2 == str {
fmt.Println(str, " is huiwen")
} else {
fmt.Println(str, " is not huiwen")
}
}
func main() {
//testString()
//testReverseStringV2()
testHuiWen()
}
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