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发表于 2012-11-13 08:48:12
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1判断语句6 |- B( S& \0 _
if <condition> then
# U9 y+ H, N8 u# B2 S, _$ j) h <statement sequence1>;" b) ?/ y/ m- i! U, w/ {( P
elseif <condition> then
7 w7 {& i0 G' s% P: u& U <statement sequence2>;
/ K1 ?, Z, d6 ]* i+ s else
# d. G: G6 b& z E( X/ \ <statement sequence3>;
' R4 ~5 T& j2 Y) T: Q3 u+ { ^- ? end;" v7 h* W& D4 z& b3 O! H
如果分支比较多，用：
8 k9 c7 _% O0 C% O+ M4 L0 g inspect <expression>
9 g+ I7 I E) m" W$ f+ ^# _8 b when <constant_list> then: H& P4 u u* M9 G$ U
<statement sequence1>;
* D+ x3 c' `! \1 A2 j2 i when <constant_list> then$ `: w. F3 Z3 b1 Z4 K
<statement sequence2>; f, ]$ I2 |: f. E' h, G
...# `. e0 t" J- o) W( t8 i
else
3 P) Z/ [) F% s7 y3 d2 c <statement sequence3>;
9 G9 c' U3 [) S/ N4 [end;! P2 m6 ]; w' Y/ l3 J9 b M
% u# l4 j1 I' S* Z! n8 f2循环语句+ k- R6 e9 e: f V7 q' t
(1) from <statement sequence1>1 z2 P5 N; W; y1 E, R8 \
until <condition> loop9 L7 I2 v+ V6 m3 C$ `+ I! k
<statement sequence2>;" e7 i" z, z( ?% K( U; T0 q
end;( G$ p! z0 p7 r! t* {( ~
(2) while <condition> loop
5 b! g6 _) v! p- N5 D <statement sequence1>;- l/ |7 g; h: L8 f+ t6 W
end;
* y& q9 J- b1 F; s" L (3) repeat 8 F. T& W2 O" _0 _* o, Q0 N' K
<statement sequence1>;
# w4 B6 }' ]8 Y1 [( ~ until <condition>;, a6 g ]* f" W2 _- ^
(4) for <condition> to <condition> loop
' K' _; f" H% s f <statement sequence1>;7 E' X" ]0 Y. A& h) J) p/ P
next;$ c l( Y: k1 A2 @
3中断语句
: F; W& R0 X& k7 p1 x waituntil <condition> prio <integer expression>;
u* `# G( W; C% C7 f8 y3 c" p& d- u' l; J' ~! E1 ^
6 Z& |. P ^) G以上为常用的函数！
. X" S% J. u' Q+ |# [# `$ h还有很多，如有需要我把资料发到你邮箱里 3 W5 Y2 n J d/ p6 {: {
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