备份还原mbr

E:\>;debug
-a
1371:0100 mov ax,201
1371:0103 mov bx,200
1371:0106 mov cx,1
1371:0109 mov dx,80
1371:010C int 13
1371:010E mov ax,301
1371:0111 mov cx,3f
1371:0114 int 13
1371:0116 int 20
1371:0118
-rcx
CX 0000
:18
-n mbr_back.com
-w100
Writing 00018 bytes
-q

E:\>;debug
-a
1371:0100 mov ax,201
1371:0103 mov bx,200
1371:0106 mov cx,3f
1371:0109 mov dx,80
1371:010C int 13
1371:010E mov ax,301
1371:0111 mov cx,1
1371:0114 int 13
1371:0116 int 20
1371:0118
-rcx
CX 0000
:18
-n mbr_rest.com
-w
Writing 00018 bytes
-q