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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
' q# B. ~+ t& t& _ if <condition> then
4 \% |( ^, z( l! v2 b <statement sequence1>;0 p, K! \- R$ G( w
elseif <condition> then
# u% e" Y% Y& c7 M* g0 ^3 g <statement sequence2>;
! I. ~0 v6 l4 g6 _! s else P. F! S% E7 X& W
<statement sequence3>;0 `& s* o! W" {8 E3 @- _
end;
' e; @9 m5 T0 b, R, ` b6 g如果分支比较多，用： R$ s! V6 u3 V& N
inspect <expression>
; v1 x7 b4 _5 z when <constant_list> then# _6 L4 B3 T4 I) |
<statement sequence1>;
4 [% g# B7 t! \/ ~& A# j; l when <constant_list> then
; ?7 K) _8 t q4 E6 \$ ] <statement sequence2>;
0 `: t' t) n# j) _) A% D. w2 u ...
, g/ r6 G+ c' V3 V& B else
; R0 J8 v5 Z3 Q6 ? <statement sequence3>;' x& e( ]& q* l
end;6 Q/ b$ N0 E$ Q0 C+ ]8 q4 \
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2循环语句2 H+ y5 \4 X6 ~
(1) from <statement sequence1>
0 Y. ?7 ~2 C0 q5 g; @ until <condition> loop
* y! c, Y# K& |: N* k5 d <statement sequence2>;
/ g$ W8 O! B q) g/ G6 V end;
& `( C/ y- U7 R1 H+ ?" d5 ^ (2) while <condition> loop) R* [* x! y# k! _5 A& U
<statement sequence1>;
- I0 u _6 ^1 |# T T& [) V$ j end;
3 N7 Q/ j# @/ I$ h5 g# I! n (3) repeat & F$ T3 a2 N1 z4 P
<statement sequence1>; z, @7 k* K n. q
until <condition>;3 z/ F- U$ _& _7 ]
(4) for <condition> to <condition> loop
0 |1 H% a" _( ~" l% C <statement sequence1>;
# g: q% ?! I! S$ ^$ e) B: L next;
0 X4 A k9 c9 x5 I5 W1 J3中断语句
3 T! `' @. G5 V- u waituntil <condition> prio <integer expression>;
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7 r" M6 A2 F) {& e/ W3 p以上为常用的函数！( r0 [7 l$ y- Y
还有很多，如有需要我把资料发到你邮箱里
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