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发表于 2012-11-13 08:48:12
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1判断语句& U' A E# n6 L5 j! C' ?
if <condition> then
4 `) @4 \" z/ W) r t' ? <statement sequence1>;& B8 ]+ @& c: q5 k# f& w8 H
elseif <condition> then1 Z3 o7 m6 R5 P2 Q& J/ z0 p ~* i
<statement sequence2>;6 M/ D$ e+ C( T7 u! m* `* U: W
else
% r9 p6 @+ ]( p <statement sequence3>;
! ?- L+ b. Y9 p' \% H) Y; z* Z. ]* D end;
( S7 X$ W( G, \# B6 m e2 z+ M# L如果分支比较多，用：
8 ?" A) Z9 a5 n h' K inspect <expression>
; r$ K1 n; m: d" J when <constant_list> then- e5 m% h& T1 U- ]7 D ?0 O
<statement sequence1>;
( C8 b, h1 i9 ~ ^# D" g3 ^2 P when <constant_list> then- Z! H: b+ ]; Q4 M4 q1 i
<statement sequence2>;
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else" J9 L4 M4 Z& A5 g
<statement sequence3>;3 o/ {) ~& ]; q+ A, D
end;( [5 D6 B8 Q' l+ D9 M
, H8 E2 G/ B/ r5 r2 c2循环语句
: i0 F; w3 c; u5 d (1) from <statement sequence1>, m5 |* W+ {* z0 u" i8 M- j
until <condition> loop
, Y- |2 G+ n$ K) ?8 s$ E2 _ <statement sequence2>;
2 ~0 W- w* [% e. N3 C r' ? end;: W" ]9 O* r z+ M
(2) while <condition> loop
+ M# K r; ], F7 n( P <statement sequence1>;
5 V m t# w6 A. ` end;- |9 q: d. F w6 L2 c% x" h4 ^
(3) repeat 3 X7 ]/ E' A$ P% }
<statement sequence1>;
; R" v& |3 r" Z8 S until <condition>;+ ~: z& y% |& B5 p' H: m1 p
(4) for <condition> to <condition> loop$ U- m" V/ u! S* ^- U
<statement sequence1>;3 l4 z( Z5 h* W
next;, H/ @/ Q* c+ ^2 L: R- h# U
3中断语句
9 ]+ }. h6 F) v2 C$ C+ O waituntil <condition> prio <integer expression>;
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9 ~# i+ W! U7 C' Z/ a% L, G- B: l9 ^ k; V( r# c: J/ O
以上为常用的函数！
0 n2 N: u x j7 a( W- t) k; Z还有很多，如有需要我把资料发到你邮箱里 3 L* u& ^8 C) O) w) T$ }
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