1.修改文件保存，增加返回值。

RedAnt ERP Mobile/common/RAUtils.h

@@ -65,7 +65,7 @@
 
 + (bool)mergeContentsOfPath:(NSString *)srcDir intoPath:(NSString *)dstDir error:(NSError**)err;
 
-+ (void)saveData:(NSData *)data toPath:(NSString *)path;
++ (BOOL)saveData:(NSData *)data toPath:(NSString *)path;
 + (void)removeFileAtPath:(NSString *)path;
 + (NSString *)appCacheDirectory;
 +(NSString*)md5WithFile:(NSString*)path;

RedAnt ERP Mobile/common/RAUtils.m

@@ -866,7 +866,7 @@ begin:
     //    return CGRectMake(x, y, v.frame.size.width, v.frame.size.height);
 }
 
-+ (void)saveData:(NSData *)data toPath:(NSString *)path {
++ (BOOL)saveData:(NSData *)data toPath:(NSString *)path {
 //    NSString *directory = [path stringByDeletingLastPathComponent];
     NSFileManager *manager = [NSFileManager defaultManager];
     NSString *dir = [path stringByDeletingLastPathComponent];
@@ -874,10 +874,11 @@ begin:
     if (create) {
         BOOL save = [manager createFileAtPath:path contents:data attributes:nil];
         if (save) {
-            
+            return YES;
         }
+        return NO;
     }
-
+    return NO;
     
 }