lib/str: add NumToStr

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/str.go b/lib/str.go
index 3c768ff..6938bfd 100644
--- a/lib/str.go
+++ b/lib/str.go
@@ -90,3 +90,12 @@ func NumToChar(n int64) byte {
 	return 0
 }
 
+func NumToStr(n int64) string {
+	s := ""
+	for n != 0 {
+		s = string(NumToChar(n%10)) + s
+		n /= 10
+	}
+	return s
+}
+