如何在ALV中显示LOGO

　Upload logo for REUSE_ALV_COMMENTARY_WRITE for those who wish to upload and use a picture in your ALV abap reports.
　Steps for uploading logo:
1. Go to the transaction OAER
2. Enter the class name as ‘PICTURES’
3. Enter the class type as ‘OT’
4. Enter the object key as the name of the logo you wish to give
5. Excute
6. Then in the new screen select Standard doc. Types in bottom window, click on the screen icon. Now, it will ask for the file path where you have to upload the logo
7. Now you can use this logo in REUSE_ALV_COMMENTARY_WRITE.
　　简括如下：
1、用T-CODE OAER将图片上传到系统；
2、在报表中通过函数REUSE_ALV_COMMENTARY_WIRETE的参数I_LOGO显示LOGO。