新增恒星相关计算

tools/format.go

@@ -0,0 +1,24 @@
+package tools
+
+import (
+	"fmt"
+	"math"
+)
+
+func Format(val float64, typed uint8) string {
+	belowZero := false
+	if val < 0 {
+		belowZero = true
+		val = -val
+	}
+	degree := math.Floor(val)
+	min := math.Floor((val - degree) * 60)
+	sec := (val - degree - min/60) * 3600
+	if belowZero {
+		degree = -degree
+	}
+	if typed == 0 {
+		return fmt.Sprintf("%.0f°%.0f′%.2f″", degree, min, sec)
+	}
+	return fmt.Sprintf("%.0fh%.0fm%.2fs", degree, min, sec)
+}