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发表于 2012-11-13 08:48:12
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1判断语句& r2 F7 _0 j6 I7 }
if <condition> then
4 L; _ M9 a8 b% O. A# F& j <statement sequence1>;
. b, I( X9 z) C* q7 q [* o elseif <condition> then
* E* q$ F+ R/ x' T% B8 A <statement sequence2>;
# j* x4 {9 a6 p* b+ t/ a1 @ else * r0 r# j! U' C7 W2 |% T& S
<statement sequence3>;
- y7 j6 T: Y- ~ end;
" H; X6 x' l) j3 z如果分支比较多，用：: l4 z' v: [9 Q
inspect <expression>
/ A! P( u5 v& A ?6 N- }& } when <constant_list> then
, }1 z* O! _: h8 o2 h- y y <statement sequence1>;
. ~# r8 K& o+ o: S2 q$ G when <constant_list> then. ^1 E. k7 s+ x: A
<statement sequence2>;
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else7 D% P; x3 u' b8 E! W# @
<statement sequence3>;
* H1 h6 R5 U/ y- Oend;
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2循环语句
2 X& a3 J6 D( W2 t2 [ (1) from <statement sequence1>
. y) g0 ~6 ~3 e/ l' e: X: M8 f until <condition> loop( E3 M( Y! J0 L- t* a0 d5 R
<statement sequence2>;. [& u! F* ^; y$ @2 A+ x! {# E+ R
end;3 n) [) {' _, O' Z* Q `3 l) M
(2) while <condition> loop8 _9 C! c! c& F3 U2 d" b( ]
<statement sequence1>;2 L) h2 J1 E5 z' H5 x. v3 ~* z
end;
. h' w* h$ ~9 R0 Z3 t) H (3) repeat . c7 j7 ?2 b6 q. q2 E" V- e* v
<statement sequence1>;
1 N2 G; L/ m: i2 j3 N5 i until <condition>;
0 w: x! \* H/ t' d" c, K (4) for <condition> to <condition> loop+ a* C% g1 k+ _) {4 ^
<statement sequence1>;/ x0 o5 U0 p. U) v
next;# t; K- W% u2 {$ d9 m2 A6 n
3中断语句
; ?- a3 |' w6 J waituntil <condition> prio <integer expression>;( x6 z# W* [8 U5 ~2 e
]0 a1 O; s1 ~: F1 ^/ n( J2 C0 x
$ N2 a+ ?2 F2 o1 S' t8 ?, D
以上为常用的函数！
9 u4 E R% A' t, |. T0 L1 o% |还有很多，如有需要我把资料发到你邮箱里
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