## string與int類型相互轉換 `Atoi()`將字符串類型的整數轉換為int類型 ~~~go func Atoi(s string) (i int, err error) ~~~ ~~~ func main() { s1 := "100" i1, err := strconv.Atoi(s1) if err != nil { fmt.Println("can't convert to int") } else { fmt.Printf("type:%T value:%#v\n", i1, i1) } } // 輸出： type:int value:100 ~~~ `Itoa()`將int類型數據轉換為對應的字符串 ~~~go func Itoa(i int) string ~~~ ~~~go i2 := 200 s2 := strconv.Itoa(i2) fmt.Printf("type:%T value:%#v\n", s2, s2) // 輸出： type:string value:"200" ~~~ ## Parse Parse類函數用于轉換字符串為給定類型的值：ParseBool()、ParseFloat()、ParseInt()、ParseUint() `ParseBool()`源碼 ~~~ func ParseBool(str string) (bool, error) { switch str { case "1", "t", "T", "true", "TRUE", "True": return true, nil case "0", "f", "F", "false", "FALSE", "False": return false, nil } return false, syntaxError("ParseBool", str) } ~~~ ## Format