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发表于 2012-11-13 08:48:12
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1判断语句0 `% e4 f6 { O+ K
if <condition> then2 m3 F. f* ?6 G+ |; q9 E
<statement sequence1>;
$ l$ Q# w4 ^9 ]( ? elseif <condition> then
]; v) U; G) Q# v4 u2 Y% P8 O <statement sequence2>;
8 _9 Z1 c; f$ b9 \4 E0 U else
& \3 A* H7 J8 J5 F# V3 I <statement sequence3>;& R- z0 y7 p; S' o
end;. j0 E2 ^( I& V; T2 U" I
如果分支比较多，用：; ^- m0 {* m; Y3 _) u" D
inspect <expression>
9 {$ Z0 b3 W9 {. o+ b when <constant_list> then
D J: P0 g" {5 C6 n <statement sequence1>;
6 }9 O u6 i" t( t7 Q when <constant_list> then
$ h& p4 \% D; C( S# e0 \6 r, @5 N9 ]4 ? ^ <statement sequence2>;
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else
9 R3 s# u; J/ q8 j9 P <statement sequence3>;- h! s7 ^' j5 F5 ]1 a
end;" R0 m) `/ N. _
9 S6 a+ b O' Y, J. S0 j2循环语句
9 |( B6 b) ?# r' I7 _2 l) U (1) from <statement sequence1>% o N. Z4 R2 q: U: m# i& x) Z
until <condition> loop5 N2 q M$ m; U8 g
<statement sequence2>;0 J- H, G: R/ L# i* Y
end;
$ p2 J3 a4 p. e7 E& D5 L* b7 B/ } (2) while <condition> loop
2 ?7 h3 l, p1 o <statement sequence1>;
- x; F2 h; W" Y& R8 h+ h) T end;
. X, B3 C; R% k& q0 m4 a" {$ [ (3) repeat
$ i& l9 W5 l3 L5 ^+ ? <statement sequence1>;
* J, ~2 C0 e Y5 A1 F b$ ] until <condition>;8 v2 Z9 P C- w1 [! f* U
(4) for <condition> to <condition> loop
# K1 ?1 ?0 k; G3 Y$ { <statement sequence1>;
1 X ?/ |' j; t; ^! d0 x next;( v o: f3 H! Q* s
3中断语句$ Z) f( u! k: g! {7 ~+ T3 y, V$ L( z
waituntil <condition> prio <integer expression>; N$ ?- ^/ g7 X. G- X+ G
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以上为常用的函数！
2 i3 k2 E8 M& d8 n6 o: @还有很多，如有需要我把资料发到你邮箱里
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