摘要：将保存重要信息，如银行卡密码的文本文件隐藏到ARGB8888的A通道。 bitmap.h bitmap.cpp main.cpp 阅读全文

摘要：When I use binary and out mode to open a exist file, and to modify the 4th and 8th byte data to 0x78, I found that the whole file will be rewrite, lik 阅读全文