golang 逐行写文件

golang 逐行写文件

In the Go programming language, How to process a file line by line?

在Go 编程语言中，如何逐行处理文件？

An equivalent piece of Bash code could be

一段等效的Bash代码可能是

while read line ; do
    echo $line
done < ./input.txt

bufioScan()

bufioScan()

// open the file filepath
f := os.Open(filepath)
// create a scanner
fs := bufio.NewScanner(f)

// scan filehttps://golang.org/pkg/bufio/#Scanner.Scan
for fs.Scan() {
        txt := fs.Text()
        // do anything with txt
}

---

---

If you are reading line by line from STDIN:

如果您正在从STDIN逐行阅读：

fs := bufio.NewScanner(os.Stdin)
for fs.Scan() {
    txt := fs.Text()
    // process txt
}

golang 逐行写文件