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发表于 2012-11-13 08:48:12
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1判断语句, ]' u* A$ R% Y1 C
if <condition> then
* e6 d% y" Y( v* L( `4 f! { <statement sequence1>;4 L5 ^/ c I$ D+ ~
elseif <condition> then: @' z- J* v( V. u
<statement sequence2>;$ l; x& Q) I D: ]6 o8 s' x
else
! n% u, S! C0 o3 A# W <statement sequence3>;
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如果分支比较多，用：
* l6 [# j8 r2 J( t" }! W inspect <expression>- h" u% C p) p! t6 a. ^
when <constant_list> then2 {, J' x f( L* w. a e; q# o
<statement sequence1>;
# o! K& [8 m1 }5 Z% u when <constant_list> then7 Y5 K. Y( V$ ~9 _2 g D3 N
<statement sequence2>;, l, G- k$ H9 q6 p3 t- o6 Y
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else8 T; Y1 g0 }. x: D! O3 I- N: j+ O8 }
<statement sequence3>;0 h3 o2 Q0 V# z9 Q! L; T, p( W
end;
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" r, ]* u& X% {1 Z3 j2循环语句
# ^9 G6 q$ R8 n( o& e (1) from <statement sequence1>
" x R+ X H0 L( y until <condition> loop
6 H2 J* ~* c1 V0 D, v+ j <statement sequence2>;
. O) D! z) L2 Z( F6 ]- W end;
3 x. A. g9 i$ Z5 @2 e3 W (2) while <condition> loop' Z8 |( U+ R, h$ H" t( x7 O
<statement sequence1>;
2 |. C* H g d end;
+ ?9 y6 F" V4 G4 Y (3) repeat
6 [, O; _" C* x- M M5 y3 g' G <statement sequence1>;$ l4 r7 T! ~- |
until <condition>;
5 Q7 ~9 N9 w: |0 q: s% Y$ L (4) for <condition> to <condition> loop
( }/ c% V2 {/ k1 R$ G& _4 f8 {7 H <statement sequence1>;
; H$ ~8 A3 k( M! n% `* a+ z8 B next;/ ^& F$ T" E( a# k/ T" C/ }$ ]
3中断语句
- N1 P( Z& P$ j% P+ m6 g+ k; u. q- l$ Q waituntil <condition> prio <integer expression>;- B/ ?# s9 n2 \
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以上为常用的函数！
' e) }9 Z0 o, t ]* |( ^还有很多，如有需要我把资料发到你邮箱里
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