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发表于 2012-11-13 08:48:12
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1判断语句2 t! i6 T4 I+ a
if <condition> then8 x' W8 T8 \. ?+ J- J1 }9 J6 D0 ^
<statement sequence1>;
1 w9 E4 f; M( ]* k! x) m8 H+ B1 ? elseif <condition> then
3 K: H7 x0 u) k3 K$ m7 q <statement sequence2>;
; A5 p6 F C& D! E+ H else
O) w) Q! C3 V) S <statement sequence3>; w4 o; I1 y" d5 r, A- Y. j0 m
end;+ R/ m! q$ U' x. u# P* N2 b8 o; U
如果分支比较多，用：9 T) K; i7 b3 Q1 M8 m- Q
inspect <expression>: l( R+ o0 J# z6 j9 p, }5 U: w
when <constant_list> then0 y' x1 L5 S5 I& b( J- v7 _
<statement sequence1>;9 d8 y1 v0 E8 S
when <constant_list> then
( r4 X# f5 r& T: l# H2 v <statement sequence2>;
7 |( ?3 U& g F3 W6 I3 o$ e8 y ...
4 C* x' c' }: q3 h- q else
- ^8 R) b3 F, h; [ <statement sequence3>;5 n, I) r1 J. H9 m& _. B, ?! p, ]
end;
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2循环语句( F( J- {$ E) }; n, u9 {3 N
(1) from <statement sequence1>
' z* P' M2 @4 d# I4 A until <condition> loop$ h1 M6 c. s9 t( y6 F
<statement sequence2>;
5 C }: `7 u8 Q" D end;
6 v5 c5 ?& i, k (2) while <condition> loop6 D, |1 |( g% M8 f+ w. d
<statement sequence1>;, }3 d& R8 a, x2 F! l
end;
3 p3 v% Q; O$ @& Y (3) repeat ( o& H: k/ }/ L. l
<statement sequence1>;( L2 D+ V' c* w5 E1 V- w$ ?
until <condition>;
% @( l$ W$ o' ]. J( u, K$ n( I \ (4) for <condition> to <condition> loop/ x' Z, T% q, K" Y& p
<statement sequence1>;
1 P/ K" I, n A% D% X8 X* D next;
' N: a* d1 u- Y! a+ n3中断语句
+ L0 S. A# e% a/ x3 w waituntil <condition> prio <integer expression>;0 m+ D" c- I- G( X P/ `
& _3 P$ t9 _, W. i7 X# _+ R
J% l( u' s7 a& @* j, ~+ K以上为常用的函数！
H5 N1 o1 v/ o) g1 [还有很多，如有需要我把资料发到你邮箱里
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