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发表于 2012-11-13 08:48:12
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1判断语句
1 T/ f. ?/ a* Y% s& h if <condition> then5 Z" |) I3 D+ R/ x- L# K- ]8 z; Z2 U% L
<statement sequence1>;2 t9 D# P! N1 y, A
elseif <condition> then
: K# a5 \4 L" z+ L+ C <statement sequence2>;' `; v2 y4 Q) g. _2 ?$ q/ n9 |9 s
else
# A& ^: _7 k. T" X9 f/ {! h+ x <statement sequence3>;
; w: I2 ] k" i! H+ z, f end;
* @) M, w: a: Y8 ?0 G如果分支比较多，用：# P% N+ g! ~5 k, l8 P; U X- [
inspect <expression>& P$ t) W/ k) a3 c1 D) k" }
when <constant_list> then. d* s1 m& `' D; l
<statement sequence1>;
. S5 W5 U& C; Y' m# } when <constant_list> then
3 B( U6 T: I# a) h* K <statement sequence2>;( A& [" G8 W9 ]+ x1 o. D7 z
...7 Q0 X2 Y8 ~7 ^& f5 [; j9 @
else- _. ^% @7 i+ ^6 K( w1 U K; a
<statement sequence3>;
y7 r3 \5 g& c" Wend;
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2循环语句1 x( \5 N7 a9 {6 I7 V# |
(1) from <statement sequence1>
/ u( H" m( ~1 l until <condition> loop0 b7 V+ C3 w8 \
<statement sequence2>;
9 b- w/ ~8 [- d. a( h# I. { } end;
# k4 E5 E6 R! ^3 w% N* i (2) while <condition> loop' p6 b2 b1 g5 ?4 R
<statement sequence1>;) i) |+ ]+ h0 _$ i+ {- T
end;; t e9 {+ u8 k% U/ a
(3) repeat ) C* ]: i4 A% N% m' b9 A }
<statement sequence1>;% Y" `( x5 z2 q7 Z0 `! n- M8 c8 i
until <condition>;0 Z& L+ o5 V7 E- Z @' L5 H
(4) for <condition> to <condition> loop
! z2 W. s' [7 d3 M <statement sequence1>;: D0 W7 P6 D6 u6 d) Q" q
next;
5 S$ a; a% a' B3中断语句
- N- K' J8 s+ k! M$ ?. i1 [7 s waituntil <condition> prio <integer expression>;
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以上为常用的函数！
% w+ C x' @; T, L1 X还有很多，如有需要我把资料发到你邮箱里 ' l# ]% {% A. D( ~) a/ d
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