Struct Reader 

pub struct Reader { /* private fields */ }

A Reader implements the io.Reader, io.ReaderAt, io.ByteReader, io.ByteScanner, io.RuneReader, io.RuneScanner, io.Seeker, and io.WriterTo interfaces by reading from a string. The zero value for Reader operates like a Reader of an empty string.

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Implementations

impl Reader

pub fn new(s: &str) -> Reader

new returns a new Reader reading from s. more efficient and read-only.

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NewReader创建一个从s读取数据的Reader。更有效率，且为只读的。

pub fn Len(&self) -> int

Len returns the number of bytes of the unread portion of the string.

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Len返回self包含的字符串还没有被读取的部分。

pub fn Reset(&mut self, s: &str)

Reset resets the Reader to be reading from s.

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重置将Reader重置为从s读取。

pub fn Size(&self) -> int64

Size returns the original length of the underlying string. Size is the number of bytes available for reading via ReadAt. The returned value is always the same and is not affected by calls to any other method.

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Size返回基础字符串的原始长度。Size是可通过ReadAt读取的字节数。返回的值始终相同，并且不受对任何其他方法的调用的影响。

Trait Implementations

impl ByteReader for Reader

fn ReadByte(&mut self) -> Result<byte, Error>

impl ByteScanner for Reader

fn UnreadByte(&mut self) -> Result<(), Error>

impl Clone for Reader

fn clone(&self) -> Reader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Reader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Reader

fn default() -> Reader

Returns the “default value” for a type.

impl PartialEq for Reader

fn eq(&self, other: &Reader) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Reader

fn partial_cmp(&self, other: &Reader) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Reader for Reader

fn Read(&mut self, b: Vec<byte>) -> Result<int, Error>

Read implements the io.Reader interface.

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impl ReaderAt for Reader

fn ReadAt(&mut self, b: Vec<byte>, off: int64) -> Result<int, Error>

impl RuneReader for Reader

fn ReadRune(&mut self) -> Result<(rune, int), Error>

impl Seeker for Reader

fn Seek(&mut self, offset: int64, whence: Whence) -> int64

impl WriterTo for Reader

fn WriteTo(&mut self, w: Box<dyn Writer>) -> Result<int64, Error>

impl StructuralPartialEq for Reader