Golang - strings 包
2017-10-09 18:32
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------------------------------------------------------------ strings 包与 bytes 包中的函数用法基本一样,不再赘述。
只对 Replacer 进行说明。 ------------------------------------------------------------
// 转换 func ToUpper(s string) string func ToLower(s string) string func ToTitle(s string) string
func ToUpperSpecial 4000 (_case unicode.SpecialCase, s string) string func ToLowerSpecial(_case unicode.SpecialCase, s string) string func ToTitleSpecial(_case unicode.SpecialCase, s string) string
func Title(s string) string
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// 比较
func Compare(a, b string) int
func EqualFold(s, t string) bool
------------------------------
// 清理
func Trim(s string, cutset string) string func TrimLeft(s string, cutset string) string func TrimRight(s string, cutset string) string
func TrimFunc(s string, f func(rune) bool) string func TrimLeftFunc(s string, f func(rune) bool) string func TrimRightFunc(s string, f func(rune) bool) string
func TrimSpace(s string) string
func TrimPrefix(s, prefix string) string func TrimSuffix(s, suffix string) string
------------------------------// 拆合
func Split(s, sep string) []string func SplitN(s, sep string, n int) []string
func SplitAfter(s, sep string) []string func SplitAfterN(s, sep string, n int) []string func Fields(s string) []string func FieldsFunc(s string, f func(rune) bool) []string
func Join(a []string, sep string) string
func Repeat(s string, count int) string
------------------------------
// 子串
func HasPrefix(s, prefix string) boolfunc HasSuffix(s, suffix string) bool
func Contains(s, substr string) boolfunc ContainsRune(s string, r rune) boolfunc ContainsAny(s, chars string) bool
func Index(s, sep string) intfunc IndexByte(s string, c byte) intfunc IndexRune(s string, r rune) intfunc IndexAny(s, chars string) intfunc IndexFunc(s string, f func(rune) bool) int
func LastIndex(s, sep string) int
func LastIndexByte(s string, c byte) intfunc LastIndexAny(s, chars string) intfunc LastIndexFunc(s string, f func(rune) bool) intfunc Count(s, sep string) int
------------------------------
// 替换
func Replace(s, old, new string, n int) string
func Map(mapping func(rune) rune, s string) string
------------------------------------------------------------
type Reader struct { ... }
func NewReader(s string) *Reader
func (r *Reader) Read(b []byte) (n int, err error)func (r *Reader) ReadAt(b []byte, off int64) (n int, err error)func (r *Reader) WriteTo(w io.Writer) (n int64, err error)func (r *Reader) Seek(offset int64, whence int) (int64, error)
func (r *Reader) ReadByte() (byte, error)func (r *Reader) UnreadByte() error
func (r *Reader) ReadRune() (ch rune, size int, err error)func (r *Reader) UnreadRune() error
func (r *Reader) Len() intfunc (r *Reader) Size() int64func (r *Reader) Reset(s string)
------------------------------------------------------------
type Replacer struct { ... }
// 创建一个替换规则,参数为“查找内容”和“替换内容”的交替形式。// 替换操作会依次将第 1 个字符串替换为第 2 个字符串,将第 3 个字符串// 替换为第 4 个字符串,以此类推。// 替换规则可以同时被多个例程使用。func NewReplacer(oldnew ...string) *Replacer
// 使用替换规则对 s 进行替换并返回结果。func (r *Replacer) Replace(s string) string
// 使用替换规则对 s 进行替换并将结果写入 w。// 返回写入的字节数和遇到的错误。func (r *Replacer) WriteString(w io.Writer, s string) (n int, err error)
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