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发表于 2012-11-13 08:48:12
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1判断语句
9 B. ^! C2 u5 s) K+ ? if <condition> then) V! s H' W* `- S; S
<statement sequence1>;
2 d. Y# n e6 E elseif <condition> then6 l- v" D y: K( C
<statement sequence2>;
) D! {% }$ v. s* H% x1 z. ^2 ] else
* R7 Q6 R- V+ ]2 A% n <statement sequence3>;9 r p7 u* V4 k' R _
end;
( x+ Q7 m6 N$ b6 q. |4 ^7 ^如果分支比较多，用：
; X5 X/ a- u+ ?! a& [ inspect <expression>: b- K9 X N; o! e% P1 \) f& n+ b
when <constant_list> then0 U' \& s, b; I, F. N
<statement sequence1>;
" H/ O% F0 P# V- U when <constant_list> then
; J2 K$ K; l9 h4 H* c8 @ <statement sequence2>;% T9 C. [& i; ], x
...
V! r( [, ^) c' P/ G% u4 R else+ D. S( p5 i! E6 y% A6 ^3 C
<statement sequence3>;
" W0 d' _7 g" [+ r" e0 j9 K" u$ ~end;
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2 N# t' Z h6 @ W Z2 i/ P2循环语句
; |( P& M# i3 U) R! Y- E d# m (1) from <statement sequence1>
/ l4 {. ?0 ]! Q6 m! n' d8 o: r5 I( y until <condition> loop
# T. h J& Y/ P% P0 F6 [ <statement sequence2>; u, ^( D- l0 {8 W s$ x
end;, Z( F5 |' ?& s0 ?& |
(2) while <condition> loop
$ g2 c, ?" h _ O7 m <statement sequence1>;5 s5 c/ O0 X1 u5 Z
end;' {$ u8 R% J- C2 K" a
(3) repeat 2 k9 R7 }7 q; F( C) i$ X
<statement sequence1>;
% D* `8 F) f. V9 T$ G until <condition>;8 ?/ T& B. o! `) |( Q. i, x
(4) for <condition> to <condition> loop
; B; f8 f/ o3 N. ? <statement sequence1>;
$ V' O3 h8 w7 s8 f* U: S. l! b next;. V! k9 Z& _; ~$ m
3中断语句, k$ v) I1 J9 }4 l
waituntil <condition> prio <integer expression>;
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' O3 _6 L/ g! R1 B- e: i) L9 H" t
以上为常用的函数！
( ?- L$ c' R* h+ e8 O0 a还有很多，如有需要我把资料发到你邮箱里 % \- G1 ]* p' n0 Q0 i9 ~
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