实现文档内图片的CDN设置

utils/url.go

@@ -0,0 +1,28 @@
+package utils
+
+import "strings"
+
+func JoinURI(elem ...string) string {
+	if len(elem) <= 0 {
+		return ""
+	}
+	uri := ""
+
+	for i,u := range elem {
+		u = strings.Replace(u,"\\","/",-1)
+
+		if i == 0 {
+			if !strings.HasSuffix(u,"/") {
+				u = u + "/"
+			}
+			uri = u
+		}else{
+			u = strings.Replace(u,"//","/",-1)
+			if strings.HasPrefix(u,"/") {
+				u = string(u[1:])
+			}
+			uri += u
+		}
+	}
+	return uri
+}