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发表于 2012-11-13 08:48:12
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1判断语句+ K U% o' A& U* Z" C
if <condition> then
; R" p0 `" u9 I" R7 p <statement sequence1>;6 u" G+ y# Z* `3 f' m
elseif <condition> then0 a- l2 R ~5 E0 z/ W5 N
<statement sequence2>;. |4 `# ]' f- R
else
- s2 A/ K( K3 G- t+ ` <statement sequence3>;
1 v$ m z5 N4 p {# Q end;
& l, Y) [7 ^% {# S7 m2 u如果分支比较多，用：
; g% {+ _ H. }1 M: U inspect <expression>
! g9 {8 S6 W5 s4 }, |0 `* F when <constant_list> then: w0 t; O. p% x$ ^+ B& ~
<statement sequence1>;+ O& B b9 P4 `6 h4 B
when <constant_list> then. E/ B. P9 s9 N+ j: \/ c
<statement sequence2>;
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else
# v7 J& D& A s8 U( B3 [% M' A <statement sequence3>;
) _; l5 N& Q" g T( m: K' H" }end;
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2循环语句
$ _8 t3 F2 {7 g* C (1) from <statement sequence1>5 f1 I7 T; v; d+ I& a3 L4 I6 F: k
until <condition> loop
" D( t9 J+ _" q8 c2 M; { <statement sequence2>;! ^2 v5 y) p& W/ c, v) P
end;
- K. [5 n# p$ s# o& p/ B9 V (2) while <condition> loop
Z8 a3 s. \/ ], |. D! L d <statement sequence1>;
, A% }8 I! ]! r$ G: ?3 T3 w end;
' u2 c- b G% L8 B (3) repeat |, f v/ j1 O' ?( Z
<statement sequence1>;$ V, q) v/ |& D
until <condition>;
( x$ C4 N; Y. C) e) A1 @ (4) for <condition> to <condition> loop
`7 F+ w4 S- m4 P <statement sequence1>;
, t6 {/ e+ Y0 ]) F next;8 H; q$ c1 R: c) q; \! u2 ^, i G
3中断语句9 J: ?' @) H! ~8 S3 @
waituntil <condition> prio <integer expression>;0 Z; s( V4 U# k5 W* y1 m3 ]# l5 |
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1 z+ S; I" x: _. {以上为常用的函数！
3 M* n U# B n' d; Y N还有很多，如有需要我把资料发到你邮箱里 " I3 ^& M( g9 y
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