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发表于 2012-11-13 08:48:12
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1判断语句
1 f! r9 C+ a1 @/ b! I if <condition> then
8 U! [" } f; n$ U <statement sequence1>;
. {4 S( R$ d* H& q( D" c elseif <condition> then
+ L" C# N7 ]: o. v T9 { <statement sequence2>;
" a$ q& w: s' l/ f) ^ else + ?+ Z, m8 G5 d7 `8 r7 q1 O
<statement sequence3>;
" ]$ ~3 S, A2 c, Q/ g8 ^" c end; X% ?& q2 O% s
如果分支比较多，用：
1 D' C6 _2 \) `' I& g inspect <expression>% w) ^" I" l, b. s2 d
when <constant_list> then+ o8 N) G3 @! j3 X/ \
<statement sequence1>;
( ]! D% L6 j! ^3 A- p/ U& g! R when <constant_list> then, `0 E8 P) \ M6 D
<statement sequence2>;5 E O7 a; E' B4 m; a$ H7 S" E
...& @4 D8 R3 J, k2 _# s* e
else% G; h1 L; ?- X3 b8 T
<statement sequence3>;& V* Q0 G( U( Z- `( Z( C$ F
end;, d- h, L4 Q. E; Z5 K
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2循环语句( y Y; i6 J G: W1 R6 N- v
(1) from <statement sequence1>2 O# g5 d! n1 Y E
until <condition> loop8 G) p) x) f2 l5 E8 @
<statement sequence2>;8 z' `8 ~2 V; k6 M& }# Q
end;
' r' r J* w7 x# O1 v" k% ~, Z (2) while <condition> loop" [/ J6 J- o6 }* T4 i1 P3 H# U f# l
<statement sequence1>;- d: J; Y8 D8 O& O; w- s
end;+ S$ _8 |7 w+ y1 W5 p
(3) repeat ( F3 q+ [; Z5 M4 @
<statement sequence1>;: \3 i5 V4 P9 t v+ Y) ?& L
until <condition>;
; `" F4 Q, J/ s& ^+ l7 } (4) for <condition> to <condition> loop4 `( y0 p+ _; l1 U; a& J, K( Q
<statement sequence1>;
Q9 S) \0 i6 j& l( ~4 V8 p next;% ^4 i! S6 v, @1 A" B# X7 W
3中断语句
( |$ [' W, J/ h5 ]: V waituntil <condition> prio <integer expression>;
8 h) O! v E5 a) ]6 f; b3 F* k% N! c' j- M9 x
]4 E- G- Q1 s0 \' `) Y以上为常用的函数！
4 D0 P) R1 c9 l' i还有很多，如有需要我把资料发到你邮箱里 " \0 [9 c6 S( J. _- S( Z& ~
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