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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
5 c( r+ s- e! K7 M) o" F- O( r8 K. L* c9 q if <condition> then
/ o/ B' k% `0 P+ [* e& Q6 V# ` <statement sequence1>;
5 D& I. B6 H/ ~: w w elseif <condition> then
1 ^. V# a. y; Q( G1 U <statement sequence2>;
# {3 R- G$ p; O* y4 l2 { else
) H% Q1 I4 k' C <statement sequence3>;" {. |& y+ f: D' W: Z# ?+ ?+ p
end;. o: A& r9 c( f' \: b. s$ [
如果分支比较多，用：
+ Q0 @' x' d1 D1 M inspect <expression>
" n, h; _9 Q! u \4 ~5 {4 b2 V! N when <constant_list> then
" ~* o- a; ]+ l( Q& q! U <statement sequence1>;& g( U. B7 T; |8 M" b8 S }8 z( m
when <constant_list> then
4 f! ]* X3 V% I S( q/ Y5 t <statement sequence2>;
% I& b! w5 k. i. P) C. R" A0 ] ...
0 G- f. p+ {3 } L5 |8 v else
. z9 f3 ~ q d$ b$ b6 g <statement sequence3>;
- U$ o4 P3 g( N4 }+ W+ yend;
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2循环语句
; j) ^0 B8 z B. o# G/ Y# V (1) from <statement sequence1>
, d% S+ @8 ?: v2 R7 J( r$ U until <condition> loop4 p! e8 v2 N! U2 ^$ J
<statement sequence2>;: R5 n8 n1 y( z& z. `
end;" G& g7 F `2 v) b
(2) while <condition> loop7 W; G7 Z0 H& ^. Z6 @; G4 h
<statement sequence1>;
4 Q9 K# E! y6 x5 P end;7 p3 F! m* Y+ O% H7 w
(3) repeat * C8 |: M: z( g1 [0 v4 }* P3 T
<statement sequence1>;
# I/ _0 f4 j+ R" s3 t until <condition>;+ E0 A( K1 k; C5 i- J. O3 L0 E
(4) for <condition> to <condition> loop
. x. T8 Z* u) P( s* i8 Y: D; B <statement sequence1>;
6 L, m. G2 T1 s0 D" I, h; b: } next;6 ^# }- S. P" y3 L" \* {8 O* r) ]$ p
3中断语句9 g+ ]# c3 R) s0 r% E
waituntil <condition> prio <integer expression>;/ ^" C4 z3 M& i# p3 \
! P- E. a; W; P2 f- A$ B
" q& K$ V% I4 X/ g以上为常用的函数！" a$ o$ p/ W4 m3 { Y9 c, Y" O+ [% W
还有很多，如有需要我把资料发到你邮箱里
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