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发表于 2012-11-13 08:48:12
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1判断语句
' B1 H$ ~- d. o" w8 \ if <condition> then
" ?9 A8 W/ \* N' C' ] <statement sequence1>;
" F2 h0 k2 N" a" }8 f, F2 F% Q% { elseif <condition> then9 ]; z( h _7 |! _
<statement sequence2>;
8 O) Q6 D% ` J2 f else
) r& P0 x! |( t9 ]; J. W8 o( E p <statement sequence3>;) R% u0 O3 Q, ], S# f* d& e8 G" S
end;
H5 ^! o; \, R2 a; `如果分支比较多，用：# e& G0 J1 ? l, a- X7 B2 F
inspect <expression>
M4 K) T. ^# p5 e when <constant_list> then
) R# Z( q, P& v' d: I" } <statement sequence1>;1 Y! q5 c- j* U, @) J
when <constant_list> then, d% e$ ^: v4 F8 Q4 ?3 Q& b
<statement sequence2>;
- Z9 T* S2 n7 `8 j ...
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<statement sequence3>;5 [& ~ N$ n8 S
end;% A- Z7 R0 N3 {1 {7 z% @- ?# t
3 z& n1 c$ m% [5 x2循环语句
3 [5 d* l5 N Z- T" p (1) from <statement sequence1>( \$ A4 ]5 P9 A0 {& r7 u2 L
until <condition> loop. r% D u! `4 O1 T# O! e# v( M
<statement sequence2>;
. O5 H, C4 ?# k2 F end;
7 C+ `4 Q; y5 [3 K* q1 A% W) ]( t (2) while <condition> loop" G8 _* ]6 l y* O0 H2 J
<statement sequence1>;
( O/ k3 u( R, ?/ C end; p7 E; @1 C" H+ c5 t
(3) repeat : g) U$ R! p; W+ a% R
<statement sequence1>;
3 k+ g7 \3 o. d5 r; x: b% o until <condition>;$ F) F4 o' u9 S8 C& T- b* c+ x
(4) for <condition> to <condition> loop& E2 ~/ d4 l) u+ \' j! x2 T
<statement sequence1>;
# p$ `7 }% o/ U& B/ @/ B next;9 D4 `; a2 T6 v; ]
3中断语句1 ]5 H1 s+ B$ p* t6 {: g: l
waituntil <condition> prio <integer expression>;
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" ]/ ^1 D7 N( E, e: [3 v: q3 z以上为常用的函数！
9 q1 [2 P! V* s. {3 w还有很多，如有需要我把资料发到你邮箱里
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