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发表于 2012-11-13 08:48:12
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1判断语句% Z) ]# H5 a; o4 `) R* d ? z
if <condition> then
( o" q% c# f) o <statement sequence1>;* B' n* ~9 _. v' o5 o: \( O* [3 l: Q
elseif <condition> then+ v& L' H' Q: r; Q# g! K, q- _
<statement sequence2>;
4 n& @" S, O! R: @2 I* L' P else
( o$ p& a( W, m( O# `% d! x <statement sequence3>;5 U) l- R( W! h+ o
end;
2 [6 {0 B2 I2 c* n( X2 o& _- C如果分支比较多，用：6 ?! }7 X3 w9 a. x, C
inspect <expression>
% z0 I4 \8 |9 ~3 w when <constant_list> then; [" V/ }6 s) G* P& O
<statement sequence1>;
+ f9 g$ [: ]& { when <constant_list> then
! g; J* N1 q. a* C/ m- U <statement sequence2>;
3 Z9 t* _9 ^ ^( X ...
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<statement sequence3>;2 u5 e0 m' r# U' \ Z
end;) b, I6 k' u7 {( h, `; B5 p$ K
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2循环语句
% I) J" N% Z: |# W( B/ P. C (1) from <statement sequence1>" r. F" X5 ?2 {" c
until <condition> loop5 \' _5 L% H/ V6 _1 ?6 E
<statement sequence2>;
: o0 Y. o+ ~3 r; J$ Q8 k5 \ Z end;
& H) p9 t U0 R5 a D+ w4 N+ N2 x (2) while <condition> loop
. ~; x- B {; {, ^: |1 ~5 l <statement sequence1>;9 E6 S" ]: R# `0 t4 Z" B8 T2 P
end;
( z, h4 t5 V* Y z3 X1 ^1 A (3) repeat
& [" ?; R5 _1 _5 p' q- J <statement sequence1>;7 A$ M$ l. ?3 m
until <condition>;, w3 D* n# m& K% P
(4) for <condition> to <condition> loop
2 f5 ^6 j" ~" @8 q3 J <statement sequence1>;
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3中断语句
! H3 Z3 f, ~+ C) k6 r waituntil <condition> prio <integer expression>;, _( ], S& M+ R! ~9 J h
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以上为常用的函数！# Q6 j1 T8 F3 x
还有很多，如有需要我把资料发到你邮箱里 % Q9 Y& h" |- y6 J1 g
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