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更新第十章timezones.go练习题答案 (#722)

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* 根据map章节的教程，改写String方法

* format the source code

* update to make it more friendly to new learners.

* Update according to comments
This commit is contained in:
SoniaChoo
2019-10-16 05:59:06 +09:00
committed by Unknwon
parent fb89ea48f2
commit f462e39fa6
1 changed files with 4 additions and 5 deletions
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7
eBook/exercises/chapter_10/timezones.go
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@@ -15,16 +15,15 @@ const (
CST TZ = -6 * HOUR CST TZ = -6 * HOUR
) )
var timeZones = map[TZ]string{UTC: "Universal Greenwich time", var timeZones = map[TZ]string{
UTC: "Universal Greenwich time",
EST: "Eastern Standard time", EST: "Eastern Standard time",
CST: "Central Standard time"} CST: "Central Standard time"}
func (tz TZ) String() string { // Method on TZ (not ptr) func (tz TZ) String() string { // Method on TZ (not ptr)
for name, zone := range timeZones { if zone, ok := timeZones[tz]; ok {
if tz == name {
return zone return zone
} }
}
return "" return ""
} }