common 增加 dict转string 工具函数

common/RAConvertor.h

@@ -19,7 +19,7 @@
 
 
 +(NSData*) dict2data:(NSDictionary*) dict;
-
++(NSDictionary*) data2dict:(NSData*) data;
 +(NSDictionary*) string2dict:(NSString*) str;
 +(NSString*) dict2string:(id) dict;
 

common/RAConvertor.m

@@ -25,6 +25,10 @@
     }
     return jsonString;
 }
++(NSDictionary*) data2dict:(NSData*) data
+{
+    return [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
+}
 +(NSArray*)Dict2KVArray:(NSDictionary*) dict trim:(bool)trim
 {
     NSMutableArray* ret = [NSMutableArray new];