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发表于 2012-11-13 08:48:12
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1判断语句1 q' L8 T7 w' o: r: B$ x* s8 G# m
if <condition> then
% F0 s. `4 z8 {% M1 [ <statement sequence1>;
* f F3 ]* p( A8 `) F elseif <condition> then
+ _* Y5 C( @( L" E <statement sequence2>;
/ B5 I- ^5 j1 \6 B7 d% @( T else % _* h& _1 E$ @% m
<statement sequence3>;* h5 z6 N/ \7 P& q% P. s$ b
end;
# f2 e. g3 N1 M, Y! X9 U如果分支比较多，用：' g2 Y. E9 ?" w; u8 j/ Y/ A
inspect <expression>
3 `7 t8 d/ F4 k0 X5 J when <constant_list> then7 Y# [; H* j! v# a# b2 ^7 ^* I" J. D+ K) P) f
<statement sequence1>;5 q# H1 n4 x: @: s7 W( R
when <constant_list> then. N( J0 i' D* v/ R5 {9 {
<statement sequence2>;
: x& [8 V; e3 B9 M3 D* y ...
, H6 v6 M1 L4 T& Q. f( E9 i else
# G1 I/ e: u+ B6 [ <statement sequence3>;. D: I* i1 w+ s8 m
end;
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% K- { h0 ^% P: H3 k% b2循环语句5 ?" ?2 h. Z' Z# s8 J. Z7 a/ Z
(1) from <statement sequence1>
/ o" T: q& E, E5 m. j- B; j until <condition> loop
0 r, L" i' N1 ^ }5 j5 H" U <statement sequence2>;
+ E, l7 V( N: W S9 A end;
/ R# l! J3 r' J, D) T (2) while <condition> loop
& y. D4 g) M5 ^; R k9 q <statement sequence1>;& N# J j3 E, h) E' O1 x% x
end;7 q. X* V0 h+ ]* I" e$ ~- c# e! O
(3) repeat
" o+ |; v' C+ w9 E* x <statement sequence1>;2 S+ j0 e' F4 e9 Z) q
until <condition>;8 f3 ?! ^( A, r* l5 \* v/ p
(4) for <condition> to <condition> loop
; q1 m# u8 m+ `: [ <statement sequence1>;
% j+ r9 {) L s$ W5 D next;
8 n0 G! S8 `% s3中断语句9 W" i/ P. j6 M8 O
waituntil <condition> prio <integer expression>;
: u b2 ?2 |) ]5 _& w. R7 o% K2 n
; J; d' v1 `" G以上为常用的函数！
+ q& |, V- x6 g! a* r- R$ [/ \; K, u还有很多，如有需要我把资料发到你邮箱里 y8 `+ T# Q; e: M1 \. g7 y, a( }2 V
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