diff --git a/MJAppTools/Models/MJMachO.m b/MJAppTools/Models/MJMachO.m
index cf8f373..772a496 100644
--- a/MJAppTools/Models/MJMachO.m
+++ b/MJAppTools/Models/MJMachO.m
@@ -24,17 +24,9 @@ + (instancetype)machOWithFileHandle:(NSFileHandle *)handle
 - (instancetype)initWithFileHandle:(NSFileHandle *)handle
 {
     if (self = [super init]) {
-        // 开始的偏移
-        unsigned long long beginOffset = handle.offsetInFile;
-        
-        // magic
-        uint32_t magic = [handle mj_readUint32];
-        
-        // 恢复偏移
-        [handle seekToFileOffset:beginOffset];
-        
+        uint32_t magic = [handle mj_staticReadUint32];
         if (magic == FAT_CIGAM || magic == FAT_MAGIC) { // FAT
-            [self setupFat:handle bigEndian:magic == FAT_CIGAM];
+            [self setupFat:handle];
         } else {
             [self setupMachO:handle];
         }
@@ -102,13 +94,14 @@ - (void)setupMachO:(NSFileHandle *)handle
     }
 }
 
-- (void)setupFat:(NSFileHandle *)handle bigEndian:(BOOL)bigEndian
+- (void)setupFat:(NSFileHandle *)handle
 {
     self.fat = YES;
     
     // fat头
     struct fat_header header;
     [handle mj_readData:&header length:sizeof(struct fat_header)];
+    BOOL bigEndian = (header.magic == FAT_CIGAM);
     
     // 架构数量
     uint32_t archCount = MJEndianConvert(bigEndian, header.nfat_arch);
@@ -123,7 +116,8 @@ - (void)setupFat:(NSFileHandle *)handle bigEndian:(BOOL)bigEndian
         
         // 偏移到架构具体数据的开始
         [handle seekToFileOffset:MJEndianConvert(bigEndian, arch.offset)];
-        MJMachO *machO = [[self class] machOWithFileHandle:handle];
+        MJMachO *machO = [[[self class] alloc] init];
+        [machO setupMachO:handle];
         if (machO.isEncrypted) {
             self.encrypted = YES;
         }
diff --git a/MJAppTools/Tools/MJPrintTools.m b/MJAppTools/Tools/MJPrintTools.m
index 617dc32..9494691 100644
--- a/MJAppTools/Tools/MJPrintTools.m
+++ b/MJAppTools/Tools/MJPrintTools.m
@@ -23,47 +23,58 @@
 const NSString *MJPrintColorError = @"\033[1;31m";
 const NSString *MJPrintColorStrong = @"\033[1;32m";
 
+#define MJBeginFormat \
+if (!format) return; \
+va_list args; \
+va_start(args, format); \
+format = [[NSString alloc] initWithFormat:format arguments:args];
+
+#define MJEndFormat va_end(args);
+
 @implementation MJPrintTools
 
 + (void)printError:(NSString *)format, ...
 {
+    MJBeginFormat;
+    format = [@"Error: " stringByAppendingString:format];
     [self printColor:(NSString *)MJPrintColorError format:format];
 }
 
 + (void)printWarning:(NSString *)format, ...
 {
+    MJBeginFormat;
+    format = [@"Warning: " stringByAppendingString:format];
     [self printColor:(NSString *)MJPrintColorWarning format:format];
+    MJEndFormat;
 }
 
 + (void)printStrong:(NSString *)format, ...
 {
+    MJBeginFormat;
     [self printColor:(NSString *)MJPrintColorStrong format:format];
+    MJEndFormat;
 }
 
 + (void)print:(NSString *)format, ...
 {
+    MJBeginFormat;
     [self printColor:nil format:format];
+    MJEndFormat;
 }
 
 + (void)printColor:(NSString *)color format:(NSString *)format, ...
 {
-    if (!format) return;
+    MJBeginFormat;
     
-    va_list args;
-    va_start(args, format);
-    NSString *formatStr = [[NSString alloc] initWithFormat:format arguments:args];
     NSString *printStr = nil;
-    
-    if (color) {
-        printStr = [color stringByAppendingString:formatStr];
+    if (color && ![color isEqual:MJPrintColorDefault]) {
+        printStr = [color stringByAppendingFormat:@"%@%@", format, MJPrintColorDefault];
     } else {
-        printStr = [MJPrintColorDefault stringByAppendingString:formatStr];
+        printStr = [MJPrintColorDefault stringByAppendingString:format];
     }
-    
-    printStr = [printStr stringByAppendingString:(NSString *)MJPrintColorDefault];
-    
     printf("%s", printStr.UTF8String);
-    va_end(args);
+    
+    MJEndFormat;
 }
 
 @end
diff --git a/Release/MJAppTools b/Release/MJAppTools
deleted file mode 100755
index 70e0d18..0000000
Binary files a/Release/MJAppTools and /dev/null differ