Merge remote-tracking branch 'origin/master'

calendar.go

@@ -2,7 +2,6 @@ package carbon
 
 import (
 	"math"
-	"strconv"
 )
 
 var (
@@ -102,7 +101,7 @@ func (c Carbon) ToChineseDayString() string {
 	x := (44*(c.Century()-1) + (c.Century()-1)/4 + 9) % 60
 	// 计算月基数m
 	m := (int(math.Pow(-1, float64(c.Month())))+1)/2*30 + (3*c.Month()-7)/5
-    
+
 	index := (s/4*6 + 5*(s/4*3+u) + m + d + x) % 60
 	return stemsAndBranches[index-1]
 }