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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
0 L( E. U5 U, R4 l) H( r5 G2 E4 _ if <condition> then- G; a. P6 C; v- O" I% _
<statement sequence1>;
R( Q. N5 Y0 ?" _6 Z: L" s elseif <condition> then A8 `; K: }5 f% R* f7 c
<statement sequence2>;
6 N2 F: w9 M; m9 L. R- p3 {5 g else
! _' K. |% m' Y( A, |" ~0 i <statement sequence3>;
0 `7 o7 G' K( j# R end;
4 x: M2 E. [( @如果分支比较多，用：- @( q( B. a! f. J
inspect <expression>0 b: t& @* |9 W& Y
when <constant_list> then' d" e4 I' U3 k1 Q( D7 X, r
<statement sequence1>;
5 {4 `; q- C0 V. y' Y, Z, v# u when <constant_list> then
1 k+ ^, c. S5 Q: B3 _# D <statement sequence2>;, i5 u' d- V% F M& N4 S& X
...
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<statement sequence3>;& L1 y- A/ ^; L. \& K% Q1 t& Q
end;
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2循环语句' S/ U# |9 w# q" a0 e5 n
(1) from <statement sequence1>2 e; L& G3 ~3 ~, o6 }
until <condition> loop
x; i2 w. ]+ x0 h <statement sequence2>;
+ U5 Y: s, E- S: C end;
0 p/ q- |5 E( n" u+ w8 S6 n (2) while <condition> loop# L0 I Y Q6 J5 I
<statement sequence1>;: f- R8 H# [9 g, z
end;
! j& ^. ~4 K5 r, t* v) j) ^2 l (3) repeat & h6 n; A3 d% [, Q
<statement sequence1>;3 Q- t7 c$ x J0 X$ q% t& o& U
until <condition>;& y, w+ {+ m+ O$ L
(4) for <condition> to <condition> loop
& ]; r& z1 a, {" m) @$ T9 R4 ] <statement sequence1>;" M2 T0 {- g4 }* n
next;
! U, i3 X% a- P r: @. v3 e3中断语句4 U- n' i0 K2 [3 ~
waituntil <condition> prio <integer expression>;/ G% V5 p# K+ b! Y. D, x
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以上为常用的函数！7 V0 ~$ Q& `2 Y" `: d/ H
还有很多，如有需要我把资料发到你邮箱里 % `* g Z5 d7 Y5 o8 g
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