|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句8 s! W: d6 ~7 e/ y
if <condition> then
5 |3 s5 @3 J' ^% v0 D9 O& m& m <statement sequence1>;
5 j! c5 T) d4 f/ P, q elseif <condition> then5 m) P( l! A5 }
<statement sequence2>;
1 n. d% s0 d# k5 N9 d8 _ else
+ o2 y+ r* ?' F7 N4 z9 O <statement sequence3>;1 V( q! s8 l) c0 @; |- t
end;& l. }) H4 D* u8 Q% G) i
如果分支比较多，用：( K; X. }5 Z" @* ^1 t7 Z5 |
inspect <expression>
C2 B. P5 ?6 ~8 x7 ^5 x4 i$ f when <constant_list> then8 X, K+ f$ e& j! r
<statement sequence1>;
. ~' @4 D0 C2 G* Q6 }; X+ c2 J when <constant_list> then8 S4 |9 `% `# E' U3 t# G" z+ |
<statement sequence2>;9 l2 [3 e5 L2 d- Y; f
...
( h: v; j5 s, c Q+ O& a else+ J8 f A, M! }% ^, s
<statement sequence3>;
' N. ^6 C# Y0 S4 pend;
( \( D$ w5 s" R+ ^: ~0 s2 o+ B* A; U5 ~( S% S; R$ R- u: Q0 j
2循环语句: Y5 q; c* Y* I ?, ]; m
(1) from <statement sequence1>
* @3 ?' T; ?1 D& ~* R$ e* ] until <condition> loop) F8 w1 K3 ~) f* b. f) N% q# T
<statement sequence2>;- t# Z* I o) b0 Q% }
end;; f" u9 y# D: J: ~/ t! k2 g
(2) while <condition> loop
. P0 x+ L0 O9 F5 ]/ }$ v <statement sequence1>;) Q% \' k% X+ n6 \; \
end;
2 R8 |& G: F+ B& S (3) repeat 3 f( `1 v3 g4 `: _* s
<statement sequence1>;
+ d# W' M: _2 G( ~8 M until <condition>;
3 y" K% d* X* P9 j (4) for <condition> to <condition> loop1 a/ O2 q3 U3 Q+ Q
<statement sequence1>;
6 k- I U# `" M: g' K! G% r7 g" {4 q2 | next;
, \: R& i9 M; Y; z j- v3中断语句
) m3 B) Y$ l. N, d- n waituntil <condition> prio <integer expression>;6 j$ p$ m5 ~' C* P" C/ s
5 _0 Q6 D5 ?# [! S
* Z w2 i& f ]9 Q( B: O Z- j以上为常用的函数！# |/ d+ F4 ]! b6 X- A$ @
还有很多，如有需要我把资料发到你邮箱里 6 ~: a4 X7 q$ o+ D+ Q# Q9 A! k
3 P! c& i( L7 U$ I2 W# G
4 W, H+ {/ C/ E4 M- f- w' s5 O$ Z2 N! E4 M! y, o/ r0 }& e( W
; S( Y7 b, M' T. n( }% i/ i# j5 {. l3 t3 N
& o) B. ?1 W; u& j; m1 u) B! L% T
3 a: p- @6 W. p3 e: s
9 y$ u, y( k. `( K; S
5 a1 n1 U& g( A# f/ f1 v; o
) U$ ]3 }% C7 C( N8 h" a1 A+ M |
|
[复制链接]
