ioutil.ReadFile() 在go 1.16 之后ioutil.ReadFile 就等价于 os.ReadFile,所以推荐用os.ReadFile packagemainimport("fmt""os")funcmain(){content, err := os.ReadFile("a.txt")iferr !=nil{panic(err)}fmt.Println(string(content))} 先打开再读取 packagemainimport("os""io/ioutil""fmt")funcma...
func ReadFile funcReadFile(filenamestring)([]byte,error) ReadFile reads the file named by filename and returns the contents. A successful call returns err == nil, not err == EOF. Because ReadFile reads the whole file, it does not treat an EOF from Read as an error to be reported. ...
1024)bytes:=make([]byte,0)for{// 如果存在中文此方式可能出现乱码size,err:=file.Read(buf)iferr==io.EOF||size==0{break}bytes=append(bytes,buf[:size]...)// 加入分隔符验证// bytes = append(bytes, []byte("###")...)}fmt.Println(string(bytes))}...
err:=buf.ReadString('\n')line=strings.TrimSpace(line)fmt.Println(line)iferr!=nil{iferr==io.EOF{fmt.Println("File read ok!")break}else{fmt.Println("Read file error!",err)return}}}
找到type file 结构体,这个结构体下定义了大量针对文件操作的方法 一、读取文件 1、打开、关闭文件 #打开文件 func Open(name string) (file *File, err error) #关闭文件 func (f *File) Close() error 1. 2. 3. 4. 5. 6. 案例 package main ...
masterTpl, err = t.New(masterFilename).Parse(string(b))iferr !=nil{// TODO(bep) Add a method that does thist.errors =append(t.errors, &templateErr{name: name, err: err})returnerr } } b, err := afero.ReadFile(hugofs.Source(), overlayFilename)iferr !=nil{returnerr ...
If the argument io.Reader is already a Reader with large enough size, it returns the underlying Reader.*/reader :=bufio.NewReader(file) //文件若不是换行结尾,就算出错 str, err := reader.ReadString('\n')iferr !=nil { fmt.Println("read string failed,err:", err)return} ...
它有一个专门用于此的功能： ReadFile()func ReadFile(filename string) ([]byte, error)用法示例：...
$ go run read_file.go The Battle of Thermopylae was fought between an alliance of Greek city-states, led by King Leonidas of Sparta, and the Persian Empire of Xerxes I over the course of three days, during the second Persian invasion of Greece. ...
一次性读取文件,使用ioutil.ReadFile() 反正不建议用普通的Read 总之要性能就bufio,方便就ioutil https://segmentfault.com/a/11...这篇文章有深入研究 以下列出各种方法的示例 OS包 func read1(path string){ fi,err := os.Open(path) if err != nil{ ...