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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
# X" R! K: V; F; H; K$ U if <condition> then
2 d- V" @) f2 y1 @) D/ c% j. Q <statement sequence1>;) ]6 ^1 F2 L7 \6 ?. ]
elseif <condition> then0 f# K7 R: n! z; m3 Z9 a- i1 k- L
<statement sequence2>;
, c. T* Q0 v7 X8 E! V else
4 E7 X% W6 i7 v' _- `* z1 L# O: b <statement sequence3>;
$ s) v4 m8 `# ~: q2 v end;
7 Q, o0 y u3 b- }/ J如果分支比较多，用：
$ L! X; Z% A7 H; \) V inspect <expression>
; _- o3 t: `5 p$ p+ c1 R3 B when <constant_list> then: A, I4 v d6 Y/ c1 G! H* W
<statement sequence1>;& }- U3 U% y2 d4 D$ N5 n
when <constant_list> then' X4 ^8 [) T5 Z9 m4 n2 f1 k# V
<statement sequence2>;; n- J6 H* c5 t3 n+ {
..., X1 Y; i/ U" c* X( ~9 n7 K# q
else
8 r6 t$ @: h' e2 M' w5 [$ g <statement sequence3>;
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1 G& u1 c$ r4 @# _' ?
2循环语句3 `2 {, q5 g2 t: W7 {
(1) from <statement sequence1>( i! s2 k- X8 L W
until <condition> loop
& U. j. Y/ |# k0 @/ }" E! }6 a <statement sequence2>;
! o% D( i7 a+ O6 t9 X! } end;2 T4 J! d( O, L |* s; L& T
(2) while <condition> loop6 u( L2 y4 N7 N) n" d
<statement sequence1>;2 X- w5 G, g# w* h
end;
: Q+ i1 Q0 i' t9 I/ M1 [ f1 O& f (3) repeat
, Q' z* [1 Y6 W2 p1 \. s: C <statement sequence1>;; k! y+ {6 J6 b! T* s" Y
until <condition>; A! m4 P( A# q- ]$ G9 Z9 ]6 S
(4) for <condition> to <condition> loop
( Y8 c1 E: z' @; ^: m <statement sequence1>;
' f" Y+ y* c9 K* g2 Q6 k next;+ ^* A( ]- x$ U1 |
3中断语句( E& U. W u( a
waituntil <condition> prio <integer expression>;
' Y0 S4 ]' a }7 n4 ~2 v+ g2 u i; C( ?) e/ ^
5 U9 m) s5 }1 J8 k5 o0 [以上为常用的函数！0 J# ~: b) F) ]8 U2 C" U# A0 H
还有很多，如有需要我把资料发到你邮箱里
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