#string到int
int,err:=strconv.Atoi(string)
#string到int64
int64, err := strconv.ParseInt(string, 10, 64)
#int到string
string:=strconv.Itoa(int)
#int64到string
string:=strconv.FormatInt(int64,10)
#int到int64,把int先轉成字符串再轉成int64，返回帶err參數的需要忽略掉
s := strconv.Itoa(int)
s64,_ := strconv.ParseInt(s,10,64)
float64 轉成轉成int64
var x float64 = 5.7
var y int = int64(x)
//string到float32(float64)
float,err := strconv.ParseFloat(string,32/64)
//float到string
string := strconv.FormatFloat(float32, 'E', -1, 32)
string := strconv.FormatFloat(float64, 'E', -1, 64)
