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发表于 2012-11-13 08:48:12
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1判断语句5 q# ^- _1 `5 c! f) i1 |/ [- _( V- P
if <condition> then
) u% f4 z8 h( D+ C <statement sequence1>;3 _$ d. Y2 x1 b- w& X
elseif <condition> then
! m2 n* C0 [$ Y3 B- ?5 g2 M2 v! z <statement sequence2>;9 k. M' L |- ^) b
else 9 T* d: ]. U4 }# n5 `$ E. D
<statement sequence3>;
" }( |5 e- J5 B. Q end;
) {; @4 w0 y7 \+ S5 L$ ^' i( k如果分支比较多，用：
- N/ Z- u/ ` ?- C# i7 [ inspect <expression>, V0 T3 j5 H% U) L1 t2 s) s% a# [
when <constant_list> then
) l( B+ U( O- ^* b' N& y <statement sequence1>;- h* s; q2 i8 D
when <constant_list> then
- ]! J5 g8 r7 w# H* D/ a <statement sequence2>;) {" T3 c) d; S: Z! `/ [
...+ W, W8 A5 r0 M) K& v& d& m* R3 n! ]2 j
else" N1 z( K/ g$ n5 E& J* U
<statement sequence3>;9 T, c" ]% o: F% C u- s$ J( K; z2 v
end;
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, _' E$ s7 r+ g, e; C' {$ P6 q2循环语句
, N# f% {0 e. q0 O# R/ I (1) from <statement sequence1>3 n T# R$ s$ y
until <condition> loop
' @% q5 V! p; j! Z8 D <statement sequence2>;
# f: s1 ]0 X+ ?! ]& I) v6 Z end;
# j( t" g6 I+ W* Z/ @8 a0 V3 f5 n (2) while <condition> loop
4 ^6 C3 k- A' E! j, p! m <statement sequence1>;" w, |7 o4 M5 I, A3 G4 K
end;& d# i1 O4 a( j1 L$ I: @- Q* v" V
(3) repeat
. Z, e$ G& r U9 T0 |% l c- N <statement sequence1>;
2 K$ \# @# `& s2 U5 C! ^ until <condition>;, P+ H) h) F y4 I n8 Z! t' p
(4) for <condition> to <condition> loop
0 D: S6 Y7 `: @/ P1 j4 x <statement sequence1>;6 s$ r* y* P& S
next;+ `! u) Z. @. U3 ]3 B" n d8 d
3中断语句
6 u { r: Y. _& r/ p waituntil <condition> prio <integer expression>;
! e) {7 w" j- b, z
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以上为常用的函数！# P7 }& j* P0 s: `) q0 i
还有很多，如有需要我把资料发到你邮箱里 8 ~! `. a1 ]- ?0 u
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