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发表于 2012-11-13 08:48:12
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1判断语句
/ x3 o' K4 @3 I if <condition> then
+ I# D" y) s1 l) d! o& C/ v& l <statement sequence1>;
. y: l, V# N; p: Q( u" @ elseif <condition> then
1 w% F: u3 s& ^# l" E0 Y) \ <statement sequence2>;
5 V& A3 e; c0 ] else ! X+ E+ B" Y6 Y) @9 n' f- P
<statement sequence3>;
+ P5 q% A. n2 s0 J: V7 V end;
9 o; M- t% H+ K3 G( z j如果分支比较多，用：
- X8 c% r) d5 N. ]* U" U inspect <expression>3 Q o5 P/ |7 x: v7 M. h2 A1 _
when <constant_list> then
( Y6 K! A' F- L0 |, U <statement sequence1>;
9 _+ _- K1 A5 H0 `* B: R$ [' R0 ~ when <constant_list> then
! {; P% B' h d, c; H/ W <statement sequence2>;
# h2 x x7 W7 Z5 C7 N; o* V9 I ...
# H7 h- Y1 {* C0 D else; I6 y8 G" m) B
<statement sequence3>;
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+ Y! _" A9 g7 r- x2循环语句" l% `4 d6 T$ O& h
(1) from <statement sequence1>$ O+ h! j' `' B0 M `4 g+ z
until <condition> loop
( I F$ o. p1 u! @ N! u8 G; U; c <statement sequence2>;; B0 t: H' `% E, A
end;
# ^6 i1 Y& }9 `& c# u9 Y% W+ ` (2) while <condition> loop- @0 i3 _9 d1 a
<statement sequence1>;7 M+ c3 C8 e) |3 M0 l. ?9 K
end;
# F" `9 B" l- M (3) repeat
. W& z: ?) o. u" u <statement sequence1>;% R4 C+ b: D9 _. M7 q4 q, I
until <condition>;
9 c6 T5 j" l. ] [$ F9 B( n/ Z a (4) for <condition> to <condition> loop
0 S+ M# ~; J7 Y! V9 s' _2 E <statement sequence1>;
: Y( A- D! S5 B next;
6 X, O1 H) N# j+ @3 B4 D. t3中断语句
' z8 L2 R p6 Q& h* b waituntil <condition> prio <integer expression>;
! P n# I" z- g8 i8 B% K& d, b3 y, i! C! Y3 @- p6 E% U* @5 p
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以上为常用的函数！3 W, N/ I/ K6 k* N" Z# H
还有很多，如有需要我把资料发到你邮箱里 4 x0 z4 d; `+ m7 i( J0 \, r+ q4 S
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