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发表于 2012-11-13 08:48:12
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1判断语句
3 ?- s& u, ]5 K3 L; Y7 a' Z if <condition> then6 }" _1 e' T, ^2 ?9 [
<statement sequence1>;6 B4 R( U4 B/ c$ W4 h5 O+ p; t
elseif <condition> then2 J3 A6 B9 R/ b
<statement sequence2>;
3 i, R2 O' h0 N' l# \$ {" s else 6 F3 Z6 d; d( K- _/ V0 v2 h+ B& Z
<statement sequence3>;* H- N+ O* i+ |$ n! L
end;% j, c' x0 Q0 B0 J+ x
如果分支比较多，用：2 a- S' m+ @0 A2 r
inspect <expression>
4 N1 L1 ?* t1 u/ P6 ^ when <constant_list> then
( h$ i8 A c3 q0 r+ F: P# p <statement sequence1>; R" \& ^* U) c* t1 J
when <constant_list> then* k8 @4 f& H/ V2 Q+ }
<statement sequence2>;8 n! B' V. X6 O# j# `: U
...
% Z' f+ Z2 R, l else
7 k6 H/ B6 g- T) Q, L1 s <statement sequence3>;' Y5 J! _7 z: A$ O2 c0 K8 }
end; w! x# ^' F2 o y+ ^4 J& Z- m
% X$ A& Q/ H+ m) U6 ~1 n$ o2循环语句
1 x A" r& n8 C# T# K3 q (1) from <statement sequence1>
" X6 {& Z% @* t' i until <condition> loop6 w7 Y9 V5 J" e% N7 M
<statement sequence2>;0 B6 ~( ]# d& l3 D% |/ i1 T; [
end;
$ Y% O" C2 u( D! z (2) while <condition> loop
- e8 ?0 [1 p8 j4 F; w. |8 L <statement sequence1>;/ G+ _! w# k3 Q- N
end;. Z+ p* H: `( k& j s6 `
(3) repeat 1 X0 F. G3 M$ H7 h3 C0 L0 `
<statement sequence1>;
3 Y4 C* _9 ^% O: D$ S# ~, Z until <condition>;0 l, G5 J# @, ^- g5 f5 `
(4) for <condition> to <condition> loop
3 v0 J9 ?& r: q- E- y0 M/ Q- e <statement sequence1>;
' ^0 S# a, Y" J \ next;0 J& ^$ f! S/ i! }/ q7 z: W; A
3中断语句. w5 h' }- _, V% n" J6 k5 T% B
waituntil <condition> prio <integer expression>;
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/ {/ j% E. \1 P以上为常用的函数！
; t }7 f2 x2 S; p还有很多，如有需要我把资料发到你邮箱里 ! T* ?5 V! M# u1 @
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