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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
8 K7 `. k3 M! ^/ H; m& Y if <condition> then* [* N+ `9 v ^) ]5 N' i- X. g
<statement sequence1>;( h& P# h1 ~! f5 t' K( t: w2 x
elseif <condition> then; N' c0 b$ ]( i! t; C
<statement sequence2>;
* Z' d+ P; T& ~) R! ^9 q$ l else - K# ?) o- A& A) a4 u( |
<statement sequence3>;8 Q5 k5 h+ n. w: M' x# l
end;5 E/ t* q, B7 a1 @
如果分支比较多，用： f }2 X. a: W& A1 ^: {
inspect <expression>0 u7 g8 C; y8 o2 r0 Z: U& o
when <constant_list> then
( O/ t) @8 F7 N3 i$ G <statement sequence1>;/ D! a4 v: j1 Y; g8 _ i
when <constant_list> then
! s; ~% P6 q: Y/ w% g2 l E1 f" y <statement sequence2>;3 z! I2 A' v4 z- ~( f- ]
...
; `$ R8 C0 I/ ?# q. Q/ a9 ? else
9 a r2 }4 C, ^% D8 J1 X- j9 v0 t <statement sequence3>;
C2 k _6 A3 iend;
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2循环语句
# z( W0 z# ]9 F6 C! T (1) from <statement sequence1>
7 g" X! z. ^! ~! l' x1 ^! C until <condition> loop( j) ^( V2 J+ }! u) F; j& ]- I
<statement sequence2>;
9 u2 T' ^- W" W5 d7 W- L# m ]3 J end;' | D* n# M1 h3 g
(2) while <condition> loop, T; F" q6 @; b L1 x3 e+ d
<statement sequence1>;
* M( p) @6 M( N2 P end;
0 N c; X# y; Y( i! C (3) repeat 3 @) m. o: q/ Q( T0 I6 V
<statement sequence1>;
9 V3 ? y) W5 g9 T7 l+ a until <condition>;5 Z4 k- L3 h5 H' D
(4) for <condition> to <condition> loop
- `4 A+ N8 ?+ E' a4 N <statement sequence1>;3 I* [- x+ a0 O# X( \
next;) I3 y: H1 S; G# d2 S; k! ^) U
3中断语句
; Z" v. q) ]" D3 `" D waituntil <condition> prio <integer expression>;7 Z4 \3 O# \ X" ~) V# Q- u4 J
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& p6 v* t; Z4 R! p: }! i% s以上为常用的函数！4 L. j1 R5 C3 j* O. w9 a
还有很多，如有需要我把资料发到你邮箱里 + n" W8 C# l2 V7 T$ s
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