[英]variable declared but not used
I have tried different strategies to no avail.我尝试了不同的策略无济于事。 Following code in
vscode
shows variable declared but not used for year
, month
and day
while they are used in casting (last 3 lines of code): vscode
中的以下代码显示了声明但未用于year
、 month
和day
的变量,而它们用于强制转换(最后 3 行代码):
var year, month, day int
year = -1
month = -1
day = -1
// Calculate Year Month Day
if eventCalendar == "gregorian" {
s := strings.Split("eventDate", "/")
year, err := strconv.Atoi(s[0])
if err != nil {
log.Fatal("Cannot convert year to integer: " + s[0] + ". " + err.Error())
}
month, err := strconv.Atoi(s[1])
if err != nil {
log.Fatal("Cannot convert month to integer: " + s[1] + ". " + err.Error())
}
day, err := strconv.Atoi(s[2])
if err != nil {
log.Fatal("Cannot convert day to integer: " + s[2] + ". " + err.Error())
}
} else if eventCalendar == "jalali" {
s := strings.Split("eventDate", "-")
year, err := strconv.Atoi(s[0])
if err != nil {
log.Fatal("Cannot convert year to integer: " + s[0] + ". " + err.Error())
}
month, err := strconv.Atoi(s[1])
if err != nil {
log.Fatal("Cannot convert month to integer: " + s[1] + ". " + err.Error())
}
day, err := strconv.Atoi(s[2])
if err != nil {
log.Fatal("Cannot convert day to integer: " + s[2] + ". " + err.Error())
}
// TODO: Convert to gregorian
} else {
panic("Unknown calendar type: eventcalendar")
}
strYear := strconv.Itoa(year)
strMonth := strconv.Itoa(month)
strDay := strconv.Itoa(day)
//... rest of code //... rest 的代码
You create new variables inside your if-scopes called year, month, and day:您在 if 范围内创建新变量,称为年、月和日:
year, err := strconv.Atoi(s[0])
The :=
is the problem here. :=
是这里的问题。 At the beginning add a var err error
to your code and remove the colon from your function calls:在开始时向您的代码添加一个
var err error
,并从您的 function 调用中删除冒号:
var year, month, day int
var err error
year = -1
month = -1
day = -1
// ...
year, err = strconv.Atoi(s[0])
// ...
I believe this should fix your problem.我相信这应该可以解决您的问题。 Right now you are creating year, month, and day in the if-scope and never use them (inside the scope).
现在,您正在 if 范围内创建年、月和日,并且从不使用它们(在范围内)。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.