update readme

@@ -46,9 +46,9 @@ void main() => runApp(MyApp());
 class MyApp extends StatelessWidget {
 class MyApp extends StatelessWidget {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
-    //Set the fit size (fill in the screen size of the device in the design) If the design is based on the size of the iPhone6 ​​(iPhone6 ​​750*1334)
+    //Set the fit size (fill in the screen size of the device in the design,in dp)
     return ScreenUtilInit(
     return ScreenUtilInit(
-      designSize: Size(750, 1334),
+      designSize: Size(360, 690),
       allowFontScaling: false,
       allowFontScaling: false,
       child: MaterialApp(
       child: MaterialApp(
         ...
         ...

@@ -54,9 +54,9 @@ void main() => runApp(MyApp());
 class MyApp extends StatelessWidget {
 class MyApp extends StatelessWidget {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
-    //设置适配尺寸 (填入设计稿中设备的屏幕尺寸) 此处假如设计稿是按iPhone6的尺寸设计的(iPhone6 750*1334)
+    //设置适配尺寸 (填入设计稿中设备的屏幕尺寸,单位dp)
     return ScreenUtilInit(
     return ScreenUtilInit(
-      designSize: Size(750, 1334),
+      designSize: Size(360, 690),
       allowFontScaling: false,
       allowFontScaling: false,
       child: MaterialApp(
       child: MaterialApp(
         ...
         ...

@@ -50,9 +50,9 @@ void main() => runApp(MyApp());
 class MyApp extends StatelessWidget {
 class MyApp extends StatelessWidget {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
-    //Preencha o tamanho da tela do dispositivo no protótipo de design
+    //Preencha o tamanho da tela do dispositivo no protótipo de design , in dp
     return ScreenUtilInit(
     return ScreenUtilInit(
-      designSize: Size(750, 1334),
+      designSize: Size(360, 690),
       allowFontScaling: false,
       allowFontScaling: false,
       child: MaterialApp(
       child: MaterialApp(
         ...
         ...

@@ -2,14 +2,15 @@
 # This is a generated file; do not edit or check into version control.
 # This is a generated file; do not edit or check into version control.
 export "FLUTTER_ROOT=/Users/lizhuoyuan/Development/flutter"
 export "FLUTTER_ROOT=/Users/lizhuoyuan/Development/flutter"
 export "FLUTTER_APPLICATION_PATH=/Users/lizhuoyuan/Development/Project/flutter_screenutil/example"
 export "FLUTTER_APPLICATION_PATH=/Users/lizhuoyuan/Development/Project/flutter_screenutil/example"
-export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_TARGET=/Users/lizhuoyuan/Development/Project/flutter_screenutil/example/lib/main.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "FLUTTER_BUILD_DIR=build"
 export "SYMROOT=${SOURCE_ROOT}/../build/ios"
 export "SYMROOT=${SOURCE_ROOT}/../build/ios"
 export "OTHER_LDFLAGS=$(inherited) -framework Flutter"
 export "OTHER_LDFLAGS=$(inherited) -framework Flutter"
 export "FLUTTER_FRAMEWORK_DIR=/Users/lizhuoyuan/Development/flutter/bin/cache/artifacts/engine/ios"
 export "FLUTTER_FRAMEWORK_DIR=/Users/lizhuoyuan/Development/flutter/bin/cache/artifacts/engine/ios"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
 export "FLUTTER_BUILD_NUMBER=1"
+export "DART_DEFINES=flutter.inspector.structuredErrors%3Dtrue"
 export "DART_OBFUSCATION=false"
 export "DART_OBFUSCATION=false"
-export "TRACK_WIDGET_CREATION=false"
+export "TRACK_WIDGET_CREATION=true"
 export "TREE_SHAKE_ICONS=false"
 export "TREE_SHAKE_ICONS=false"
 export "PACKAGE_CONFIG=.packages"
 export "PACKAGE_CONFIG=.packages"