增加vendor

vendor/github.com/silenceper/wechat/v2/util/param.go

@@ -0,0 +1,33 @@
+package util
+
+import (
+	"bytes"
+	"sort"
+)
+
+// OrderParam order params
+func OrderParam(p map[string]string, bizKey string) (returnStr string) {
+	keys := make([]string, 0, len(p))
+	for k := range p {
+		if k == "sign" {
+			continue
+		}
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	var buf bytes.Buffer
+	for _, k := range keys {
+		if p[k] == "" {
+			continue
+		}
+		if buf.Len() > 0 {
+			buf.WriteByte('&')
+		}
+		buf.WriteString(k)
+		buf.WriteByte('=')
+		buf.WriteString(p[k])
+	}
+	buf.WriteString(bizKey)
+	returnStr = buf.String()
+	return
+}