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发表于 2012-11-13 08:48:12
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1判断语句
% W9 ~, d9 A$ U. [4 Z% @/ M7 f if <condition> then5 m7 H& a* c/ [1 n
<statement sequence1>;# t* K7 w% `$ N4 k! I. A
elseif <condition> then8 {% Z7 X' F$ a4 v
<statement sequence2>;/ N/ s- d6 d" G/ ]$ ^5 a- C2 f
else
2 z& F/ U( j7 N, U" \& @ <statement sequence3>;
M2 f2 _' U4 t8 H* {7 c+ n end;. t/ N ?, u0 N# ]$ T
如果分支比较多，用：+ p, I) T# i, W, N- L
inspect <expression>- d7 m ]. T" y( d' C5 K
when <constant_list> then! b' ~. @, P8 ~5 j1 q- ?) o* L' J
<statement sequence1>;' m$ a) f- C) D9 n
when <constant_list> then# u; p Y& W, u9 k
<statement sequence2>;
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else/ t1 [& I p8 Q! A2 ~9 L: V' @6 f, g
<statement sequence3>;6 X! i9 t# M) v8 p9 i
end;
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0 X0 i- m: b& }2循环语句
; u% B5 ?. m* z- N7 G" _ (1) from <statement sequence1>
# i7 k2 J0 i! }8 F8 _ until <condition> loop, J( Z; ^: ?4 X5 P; b$ m( E* J: a2 q
<statement sequence2>;
8 O5 O' @1 `9 C: p6 A4 ` end;
7 M/ K2 ~( }8 f S/ X1 P (2) while <condition> loop ?3 l9 E6 \9 @- E" M; U
<statement sequence1>;1 a+ N& d4 N$ Q) {5 ^8 x/ i
end;
7 ?' {9 L. R+ N' `: I (3) repeat
6 N6 M: G- P1 d% @, } <statement sequence1>;, S, z- u1 s; U9 u+ E8 K
until <condition>;7 K0 f" w0 _1 ~6 T: ]
(4) for <condition> to <condition> loop( q6 |# |7 F) Y; k7 v* _7 A
<statement sequence1>;
1 d2 [5 w& m8 j" @! ? next;8 D0 ~# K/ F' Q7 P
3中断语句9 i/ H1 R9 e H l
waituntil <condition> prio <integer expression>;8 U6 v) P6 R4 e5 U7 N+ Q1 z8 O9 _
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% r# q7 Z- |7 E以上为常用的函数！! ^$ U2 O: ~9 Q( T: y6 R1 h
还有很多，如有需要我把资料发到你邮箱里
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P7 y/ l: Z' L1 u9 n0 p& s
% H% ?' [: Q0 F& d/ n+ S/ Y# k6 l, E: t2 Y6 [1 m
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