梦翼横空的专栏

引入strings包import "strings"func Replace(s, old, new string, n int) string在s字符串中，把old字符串替换为new字符串，n表示替换的次数，小于0表示全部替换//替换两次fmt.Println(strings.Replace("oink oink oink", "k", "ky", 2))//全部替换fmt.Println(strings.Replace("oink oink oink", "oink", .

package mainimport ( "fmt" "os")func main() { filename := "./demo.txt" fp, _ := os.OpenFile(filename, os.O_CREATE|os.O_APPEND|os.O_RDWR, os.ModeAppend|os.ModePerm) // 读写方式打开 // defer延迟调用 defer fp.Close() //关闭文件，释放资源。 count, _ := fp.WriteStri.

package mainimport ( "bufio" //缓存IO "fmt" "io" "io/ioutil" //io 工具包 "os")func check(e error) { if e != nil { panic(e) }}/** * 判断文件是否存在 存在返回 true 不存在返回false */func checkFileIsExist(filename string) bool { var exist = true if _, err :.

/** * gbk转utf8 */func coverGBKToUTF8(src string) string { return mahonia.NewDecoder("gbk").ConvertString(src)}/** * 替换乱码 */func replaceNullHtml(src string) string { temp := strings.Replace(src, "聽", "", -1) return temp}/** * gbk转utf8 */fun.

1. mysql数据库字段类型timestamp `created_at` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP2. model类型type Books struct { CreatedAt time.Time UpdatedAt time.Time}3.类型赋值time.Now().UTC().Truncate(time.Microsecond)...