2.定义字节命令DB( Define Byte) 格式:标号:DB<字节常数或字符 例 0RG1000H TABLE1:DB00,08409,10H,19H 汇编后则(1000h)=00H (1001h)=01H (1002h)=04H (1003h)=09H (1004h)=10H (1005h)=19H