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发表于 2012-11-13 08:48:12
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1判断语句* t6 P, l9 M% f9 C0 x! @* Y
if <condition> then( c% Y+ K3 P: U9 x' T
<statement sequence1>;
' C) X7 |2 _, ~7 L elseif <condition> then
3 f6 n* T. l# U0 J; }* ?3 J <statement sequence2>;8 V- x' [" G: ~- K" D3 }7 M
else 7 [/ I# z' x b- v" R% G5 w: @! q
<statement sequence3>;
2 C* }8 E7 d; |) R end;+ g2 [1 f7 H8 U4 O9 B4 `+ x
如果分支比较多，用：
8 E# `. A5 ~% E3 c4 k' `% C# | inspect <expression>
K8 Y) u6 I( _9 m- [% Q1 z3 T- p% B$ W when <constant_list> then
- J5 u, e. x# e <statement sequence1>;/ V* i; X0 L# B+ M1 k+ G. Z
when <constant_list> then
- B/ K5 I, c r2 d0 @ <statement sequence2>;4 b: {5 z( F. r" K8 u' |# h
...
8 P( _% Q- y& T5 g0 w3 B else' J- w/ k: r2 o; {
<statement sequence3>;
+ y7 o* L/ ]# |% J5 ?- g( w4 Qend;
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2循环语句7 I: ^" I+ g8 Q, v4 M' P% M
(1) from <statement sequence1>! f6 j5 B+ V; X5 j5 Y
until <condition> loop7 g8 c4 y `) N$ E7 T3 _
<statement sequence2>;% R% [' n2 M+ a8 o
end;2 H; p1 r0 f2 r0 ^2 [9 b; {
(2) while <condition> loop
7 Y! C' G! F7 D4 o) T, ]/ y) k& z <statement sequence1>;% j4 C& ^4 O) Y; j
end;
7 S1 B- R; R9 ], d' K: e6 A) M (3) repeat 0 J9 [# M3 q1 h$ P6 n# B0 j
<statement sequence1>;- b% ^" V8 v6 h) q( z
until <condition>;
8 S/ n+ V) H7 \& ~- f (4) for <condition> to <condition> loop
2 Z, T3 y1 L/ E <statement sequence1>;
% D9 n( S2 Y6 O7 h9 c next;# g6 `1 j0 T# b, B1 O( M
3中断语句
9 c6 F7 \) @8 W7 V waituntil <condition> prio <integer expression>;
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以上为常用的函数！
7 v! I7 a: L8 |* r. o还有很多，如有需要我把资料发到你邮箱里
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