首先，定乙個乙個結構體
struct
controlwindowmsg;
定義乙個char型別字元陣列，並且賦值
char
buf[
4] = ;
buf[
0] = 1&
0xff;
buf[
1] = 0&
0xff;
buf[
2] = 3&
0xff;
buf[
3] =
104&
0xff;
然後，將buf中的內容賦值給結構體
struct
controlwindowmsg
windowmsg;
memset
(&windowmsg, 0,
sizeof
(windowmsg)); //結構體賦值為0
memcpy
(&windowmsg, buf,
sizeof
(windowmsg)); //結構體賦值
通過列印可以發現，windowmsg賦值成功
ps:順便新增一點
nstimeinterval
timeinerval = [[
nsdate
date
] timeintervalsince1970];
inttaskid = [[
nsstring
stringwithformat
:@"%f"
,timeinerval]
intvalue];
buf[
2] = taskid &
0xff;
buf[
3] = (taskid >>
8) &
0xff;
buf[
4] = (taskid >>
16) &
0xff;
buf[
5] = (taskid >>
24) &
0xff;
如果taksid是佔四個位元組的，給buf陣列賦值的時候這樣賦值
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