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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
8 D) M. A( F0 N8 m( Y$ O if <condition> then
! t" C8 W* Y2 l" f6 G% M7 ?3 F <statement sequence1>;' u- b V+ }6 Q5 T1 K% u, F) F. U) e3 X
elseif <condition> then
' q! X5 u9 n$ V6 ^. j* o( [ <statement sequence2>;
- G* H$ {+ n0 c+ F$ | else
* H% p- A7 l' C4 k2 n; n <statement sequence3>;; s1 F0 e. P. O Z7 m
end;
6 X4 k' @ X; i: \% [如果分支比较多，用：! o& T) h* C; g9 [
inspect <expression>9 j6 G4 C9 z b( c" }
when <constant_list> then
% o" J1 q! F* t2 o: @& X. I; B <statement sequence1>;: t& H# V0 d8 P9 d# e# T
when <constant_list> then
1 C) P5 ^2 D& }6 ?; d8 O6 W <statement sequence2>;
' r; y; c: v& t. } K ...
3 {, O% P; o, u" T: K. o else
5 J$ ]) C, S- I- E( z: m; a9 E <statement sequence3>;; x( M' o3 J0 s
end;
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0 N5 p2 D; S0 f' y5 a. W2 j2循环语句
2 Y5 C- `& d( r2 C8 @5 B9 k8 v (1) from <statement sequence1>
3 B/ P2 ?! j7 E1 Z until <condition> loop
" w* r( P; Z7 @2 g% \! @& L <statement sequence2>;
; \( c& P5 C4 X' P; L5 i c end;: l2 E9 `7 ~ _# w: ^ t7 K& E( x
(2) while <condition> loop$ `8 x/ {& Z& Y2 S6 a+ P
<statement sequence1>;
% R0 \( f. l9 t, H' P end;
3 T9 R. ^, K! x0 f0 J (3) repeat # }: c* Q7 T* x+ D% M
<statement sequence1>;9 e2 R# w, z! W" Y( K( ~
until <condition>;
: y. W3 K) t. \$ _0 h/ I. z- t (4) for <condition> to <condition> loop
% c. ~( T8 k, h% _4 t* X <statement sequence1>;& [, l3 s8 U# H* \1 \( b
next;' T B4 ]- a& |1 n* i
3中断语句
) u2 @+ q" r- x2 u waituntil <condition> prio <integer expression>;, K/ [0 V! P2 R1 [( @
- @1 ?5 @2 ^0 a
P$ g$ L" D9 F6 ~以上为常用的函数！
5 V4 b; @" b. o' C" y2 q还有很多，如有需要我把资料发到你邮箱里 . C1 Q$ a6 D' y3 f! I3 y/ ]
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2 h' [1 ]9 Y2 O$ ?
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