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发表于 2012-11-13 08:48:12
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1判断语句
# u& B2 Y" O \/ f2 f if <condition> then
' w8 z/ |1 J3 d0 \0 ^- O; X, S9 } <statement sequence1>;5 g5 B+ [, Q; q/ `: v1 E
elseif <condition> then
8 `% O# e1 Y% H) s+ F |! j <statement sequence2>;
# L+ q/ [6 n, V8 ~& X7 N4 g/ ~ else
. A) W0 r- m" d$ F" q* Y2 d2 S <statement sequence3>;& y' g# ^+ _5 r/ ]/ x+ R
end;/ B$ f1 S5 ]5 l5 k; S( h! [
如果分支比较多，用：
1 o$ B$ U. K! D2 q) X; A inspect <expression>0 D/ Z: {6 C f
when <constant_list> then
" y- H. ~; D+ q, p/ Y <statement sequence1>;
: p6 N2 ^ U5 a( C1 w when <constant_list> then
: _7 s; ]# f; \. m+ e* D <statement sequence2>;
. f. g B- x+ U ...
- o& | ^1 V& C4 P5 w% J else
+ F- k4 j. W4 m7 H/ ] <statement sequence3>;
4 q' k% N/ ^. L! _) Q8 ?end;
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2循环语句; z% {! ~, m5 K4 ~" @9 X- z+ i: O
(1) from <statement sequence1>- Z. Y' }% h9 ]: @1 \
until <condition> loop1 [2 s0 Y; N- P! t3 w
<statement sequence2>;1 M" Q# D# ?9 P7 C
end;; z r! N7 l ~' A
(2) while <condition> loop
- g1 d' W8 `8 J9 D3 ~& Y/ U <statement sequence1>; Z3 V- Y$ J; D* N
end;, c* X& ^7 h) L4 c
(3) repeat
' a0 y! p$ J' C) m <statement sequence1>;
, B& l0 G3 s Z# m! T until <condition>;
6 c6 d+ o' @$ ?' ^) {% {% v (4) for <condition> to <condition> loop
, c$ S& D9 N5 K+ k8 l( G r <statement sequence1>;
, R1 c+ j4 S, f. l* Y1 h) X+ Q next;) J& h5 l" W8 _2 S# }3 y( _, V
3中断语句
% k7 u' d. O+ ? waituntil <condition> prio <integer expression>;: S8 k! P( G- g' Y# y
9 \% ^0 }- {* @+ O
% Q. ^, ~: z7 K6 @以上为常用的函数！8 o" S( x4 w5 N, f6 M9 ^2 a
还有很多，如有需要我把资料发到你邮箱里
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