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发表于 2012-11-13 08:48:12
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1判断语句
, W8 S! u" |5 Q; T* H if <condition> then
& @3 [5 e4 P3 Y- s <statement sequence1>;
& r2 c- Q4 D8 h: h' g( w elseif <condition> then9 r2 d7 Z$ u# q5 q+ x3 G9 c
<statement sequence2>;+ j" i9 R, U) d
else 3 T; `3 {) D2 f
<statement sequence3>;& `# [ b; J u' G7 T- p4 S6 U: j" t
end;
: N1 U2 F/ k' `2 p如果分支比较多，用：' F. c) C) {6 c3 t0 B
inspect <expression>
m5 M/ d$ j* Z0 x7 Z# P! Z" u when <constant_list> then" B) U7 t( ~$ f; Z
<statement sequence1>;# T; N8 {% y: x; ]; F' s
when <constant_list> then
3 L" f$ @. t. c1 B& G <statement sequence2>;% ]7 I% j, f% j: u# U
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else; X# G: {' S G0 N( _: B
<statement sequence3>;
+ w. N7 f+ R6 ]5 K8 iend;0 a. a4 N' U0 ^- ?4 ^
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2循环语句5 B1 E& Q, o% @% o |/ e$ M
(1) from <statement sequence1>& s* g# n$ U9 \
until <condition> loop
; U+ u( l/ H1 f* F8 e" C <statement sequence2>;4 h5 n: `: N) y5 E- m2 h
end;
$ n0 }3 b# y$ `5 u9 K (2) while <condition> loop- H8 s/ p* A5 a$ A' |; o
<statement sequence1>;
( F: D6 w! C/ P+ ?7 g3 K end;
K! c, V4 v; V (3) repeat
! T4 u# y6 b0 u7 f <statement sequence1>;
9 C+ g* V% o1 w# T6 I( R until <condition>;8 K% X3 ^. U C1 B) e2 ]2 |) `1 P
(4) for <condition> to <condition> loop
2 ?$ M- F8 s# e; g8 c <statement sequence1>;2 R. `: a h5 X0 n' o' C5 Y! Y$ L
next;! }& T; c) x) @4 C6 l5 j
3中断语句, c: j8 n- M1 v5 j4 \
waituntil <condition> prio <integer expression>;( W! B z. h3 w% G3 }' p) d
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0 Q6 G& _1 w* r9 u. I/ ~! _0 _以上为常用的函数！
# c* U% L) V. r3 N" ?" _还有很多，如有需要我把资料发到你邮箱里
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w* L9 n9 @ `( K
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