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发表于 2012-11-13 08:48:12
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1判断语句
/ m: ?& D: x) d& _8 N( t. w if <condition> then
% Y3 w: {' A/ V+ Y; b, j8 Z <statement sequence1>;4 \+ Z6 |5 x; ?. r' `
elseif <condition> then. ^/ J o. y3 @8 V4 u, o) q
<statement sequence2>;% o3 w$ p+ P/ _# a
else
, t0 D) ~% r" ~' r& x$ [ <statement sequence3>;) Q/ G/ Z2 n b3 k+ S
end;
& n% r: r; s4 L5 R6 k. W' A1 e7 X如果分支比较多，用：8 ]' |! ?, @% C5 b0 U
inspect <expression>
" J6 A& b% @3 f& R5 `0 ?$ n3 o, W, B when <constant_list> then
% G1 ?# S# W4 V- s2 c <statement sequence1>;% a7 B1 f8 h, K5 t8 X# {# @- h8 e
when <constant_list> then
: O9 a+ e8 M. H <statement sequence2>;/ [' Z% u7 P9 f+ h: y" D% X& B
...
' ?: O( p6 C# h8 d9 F- a else. \" n- [. [, o1 @/ ?4 m+ {
<statement sequence3>;
8 _' p' V/ C6 o5 c( P8 |+ I3 Yend;
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1 a9 ?4 P! D; ~+ Z* Q9 z6 A' M9 B2循环语句
7 P- t: F$ [3 b2 z/ o (1) from <statement sequence1>
" ^: |) u$ _4 d' P9 \ until <condition> loop
& @ H4 K( e9 W& a$ ^ <statement sequence2>;
- S$ Q2 ^6 ]& e end;
. g0 C: w: e7 O: y8 |: ~& Q (2) while <condition> loop3 W7 ]! @ t+ q8 O5 k6 P
<statement sequence1>;3 Q! w' d r! R: H/ |
end;
/ F$ q5 W9 X' W (3) repeat 2 d' J: o% W: Y% ~& J2 a
<statement sequence1>;$ }% S, W P( W6 d" y
until <condition>;
. |$ @3 C: T# h8 a/ n, H (4) for <condition> to <condition> loop9 t; |/ |9 ?5 _+ i% O0 O
<statement sequence1>;8 p$ r6 f# T# F6 ~* W9 ]4 N
next;
5 _; N% O% c- K; `* H3中断语句
! @ s% w5 l8 h6 i0 W' A waituntil <condition> prio <integer expression>;* P9 }4 |+ Y! m2 b0 H
! }* s6 E6 I$ p3 Q# V/ B$ L, F5 ]! b. G9 w5 ?/ W
以上为常用的函数！
) o$ C2 W% }: g$ x5 G. M还有很多，如有需要我把资料发到你邮箱里 0 O: I) F% X/ k; k
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