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发表于 2012-11-13 08:48:12
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1判断语句
0 W$ o5 [2 I$ A/ u+ Z) M# ^ if <condition> then- K$ A) P" P% e- K6 w# d0 G' m. J
<statement sequence1>;* i& H+ I5 v; G6 K( |
elseif <condition> then
5 m- R. M; T( W: w7 K <statement sequence2>;
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<statement sequence3>;
0 Q& ?. p$ G. I# R2 } } end;
2 k& w) V- Q: P* s* W" J' l3 _如果分支比较多，用：
6 _9 `1 A! j( y: ?" g) ~" i/ U# D inspect <expression>; ^0 h/ o# C% A& X- j
when <constant_list> then
$ _+ N6 z. F1 G4 v' S/ x; j7 m+ U <statement sequence1>;
; y& I) i7 `9 x when <constant_list> then+ E/ p1 D4 e" K' H, {5 D! r' d2 R
<statement sequence2>;
. y. O0 s& {( ?& P5 p& R1 y ...
# h" g/ A* p! g6 F; H else
# @8 h3 M; Q, }7 z <statement sequence3>;
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4 ~0 D6 J; h* P& _2循环语句3 ~# y$ H U. K/ V K6 \
(1) from <statement sequence1>
/ h4 }2 F6 F) I until <condition> loop7 N+ C3 Y3 M+ `( e
<statement sequence2>;9 c2 m) u6 r, a: l) b1 d+ M
end;- W. ?1 d9 R9 Z" C. m5 `0 M
(2) while <condition> loop
% x: Q9 E# J: }* n* ^ <statement sequence1>;. ?# ]1 W6 D; v
end;$ E9 M4 g6 J2 {) {: O! k7 g( w
(3) repeat ( M) K$ v: l( ]) _( `( j2 G8 H
<statement sequence1>;( S, [6 [8 f- U# w7 N0 t1 Y9 }
until <condition>;5 ~5 N1 b$ _9 X8 P
(4) for <condition> to <condition> loop
: e& m5 V6 }! U <statement sequence1>;, X0 O8 U; W$ H# z6 i/ D
next;
2 @- z8 v6 D+ q3中断语句
: W/ J$ L& e" I waituntil <condition> prio <integer expression>;
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4 F# H o4 F9 o: P3 d以上为常用的函数！
4 A4 X+ H! W/ s$ N) ?1 x. U* }) e还有很多，如有需要我把资料发到你邮箱里
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