package main
import (
"encoding/csv"
"fmt"
"io"
"log"
"os"
)
func main() {
//准备读取文件
fileName := "D:\\gotest\\src\\source\\test.csv"
fs, err := os.Open(fileName)
iferr != nil {
log.Fatalf("can not open the file, err is %+v", err)
}
defer fs.Close()
r := csv.NewReader(fs)
//针对大文件，一行一行的读取文件
for{
row, err := r.Read()
iferr != nil && err != io.EOF {
log.Fatalf("can not read, err is %+v", err)
}
iferr == io.EOF {
break
}
fmt.Println(row)
}
//针对小文件，也可以一次性读取所有的文件
//注意，r要重新赋值，因为readall是读取剩下的
fs1, _ := os.Open(fileName)
r1 := csv.NewReader(fs1)
content, err := r1.ReadAll()
iferr != nil {
log.Fatalf("can not readall, err is %+v", err)
}
for_, row := range content {
fmt.Println(row)
}
}
