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发表于 2012-11-13 08:48:12
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1判断语句' p0 o. H, ^4 a. m0 W
if <condition> then
% Z2 e; `; y; J a7 G" r4 j n <statement sequence1>;+ _, U# i9 r1 k& m; S+ x
elseif <condition> then2 x* q* m- }3 n
<statement sequence2>;' O; T, p( U3 l/ k
else
" c% a) T8 C8 o \( p6 n <statement sequence3>;
; c$ @7 M M/ \ end;
- W5 Q& {( n2 _6 t# z, B( C如果分支比较多，用：
; t' Q. p% r: `& c0 d8 t( d inspect <expression>
( m$ }- ^9 M& j1 f& ? when <constant_list> then9 Y0 [1 }& p4 S# e
<statement sequence1>;1 f! [* X, Y$ d" } z3 ~$ Y8 O9 ?8 Q( k
when <constant_list> then
. ]2 T+ G6 a2 B2 o0 f, N D3 a <statement sequence2>;# c* `& k6 k' J" n1 {8 c. x
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else- ], w) i6 X9 {& q# A& Q
<statement sequence3>;
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& K5 I) q! Z! l8 o' }2 T( y6 X2循环语句
% O8 ], x( C! E3 x1 N (1) from <statement sequence1>- ]! G! w& }% T! L: _
until <condition> loop
, M2 B8 P5 H0 I% B" Z# u9 W <statement sequence2>;1 e( t- Q' n2 }
end;: B( C; v6 P" Z2 ^2 n W& m
(2) while <condition> loop
: f4 P. `' Y9 R7 y' u3 z <statement sequence1>;
: i! e: g) l, V" z( ^( E end;
( z+ }6 t) y) V, R! ? (3) repeat $ Q' T- Z! Q1 }" I( F# I8 X
<statement sequence1>;, R& C4 E7 r0 f; `' S6 i- P
until <condition>;
+ K6 Q: [3 Y. L (4) for <condition> to <condition> loop
' Y6 Y, S# u# @; t <statement sequence1>;
: W& N& R- q! Q next;
" ^1 |, N7 E7 Z3中断语句
- b! c4 T# X) \7 l9 r9 R" f# d7 {4 C& ~7 J waituntil <condition> prio <integer expression>;
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以上为常用的函数！
W: N. Z+ V5 z# n还有很多，如有需要我把资料发到你邮箱里
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