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发表于 2012-11-13 08:48:12
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1判断语句5 F3 Q; y* j- `- I$ h
if <condition> then0 r( L4 F0 S8 z- S4 o$ c
<statement sequence1>;
1 ?$ ]; v# Z& ?) n5 {+ i: y9 H elseif <condition> then; S7 U! w& S- q. [: U
<statement sequence2>;
, K( `0 @! F2 T- s r else
( f: x" ?; T4 Z. M! F u <statement sequence3>;- L1 m$ b( U! ]$ J q z
end;3 u! u3 e+ h# V* g/ A
如果分支比较多，用：
: r, }: m! K; L4 v( M! U inspect <expression>; d4 o6 A6 o- W3 R+ V$ w
when <constant_list> then
, I0 o; |/ J3 d B7 @ <statement sequence1>;# U, m7 S5 C, }' w3 H, S
when <constant_list> then8 t; }0 E7 p: ^$ a" j" f
<statement sequence2>;2 {9 L! Y5 a5 l) d% I8 b' ^
...+ o8 Z6 j; l6 S L( l5 z4 V
else
2 |: K' J& {6 \: ?. n. y <statement sequence3>;4 {6 U" @6 F+ I9 B6 Z( ]* g: k" J
end;% k3 ^- v7 N: o/ @3 D1 Z- k6 l
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2循环语句0 L% L0 E- r {1 f+ g9 J
(1) from <statement sequence1>+ J- l1 k/ a3 j
until <condition> loop
, b- m5 A* X* ]6 Z) u <statement sequence2>; t: c* N: Z0 z* y: Z
end;8 W+ L! U, W$ H+ }8 F9 s
(2) while <condition> loop! C; z. x) i) Q; ^& e
<statement sequence1>;
0 l* M, u3 F' d; _6 N2 p# k end;5 Q8 I* ?8 ~2 L5 ~+ U
(3) repeat
& m/ w8 P; r: D1 }$ c2 [" R <statement sequence1>;7 U0 }& ^( Q& D8 ?
until <condition>;7 y3 Z, x1 N( `5 U1 }2 c' e2 ^8 P1 {* L: \
(4) for <condition> to <condition> loop
# z0 n" h) t5 |2 z+ q% g( \ <statement sequence1>;+ ]) {& w: A6 f Q* m
next;' Y% T! a, E r% y
3中断语句# X4 O A) S; d/ K/ g2 ^' ~9 \
waituntil <condition> prio <integer expression>;
4 u) b3 f+ ~& N4 v# N$ r4 K y9 F% L$ c
0 W$ F% U. G: W( E以上为常用的函数！) S: r5 ` V9 i- T" C- m
还有很多，如有需要我把资料发到你邮箱里
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