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发表于 2012-11-13 08:48:12
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1判断语句+ `1 {: |4 z' U
if <condition> then$ y4 ]: s: S/ Z- ?* O0 I- `& z
<statement sequence1>;. [8 M0 n5 u7 B3 V
elseif <condition> then# Y P4 q4 U! z2 O2 t
<statement sequence2>;! a5 a3 \. \. }) }6 e
else
7 }+ [5 b* G+ _8 O <statement sequence3>;+ Y' g% r; Y( `* U
end;; e2 u5 M0 l; [ K6 ?
如果分支比较多，用：
$ W$ x2 d3 [2 t- p inspect <expression>/ K, K( a4 T ]" r0 D0 J; ?
when <constant_list> then% |( e/ |8 |. `! H# K1 Y4 @5 Q. P# G
<statement sequence1>;
6 ~; [" i, z8 i when <constant_list> then
`8 W$ R9 c6 |, a; M <statement sequence2>;% S# X0 c j! ]3 G [4 C3 V) o1 v9 U" A
...
2 `. l8 n' N! V2 S. G& _- r else
/ b) G5 ^- z7 |5 I <statement sequence3>;+ Q7 Y" W8 q: [; h% T8 U( {9 Q
end;
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L% n a0 ?: { \1 I2循环语句
8 v7 @' C1 K) U r: [ W' ]2 e (1) from <statement sequence1>
}; m1 i3 c! a+ W, J5 I" w until <condition> loop
% ^0 Z& p# t, Q+ F; T Y <statement sequence2>;. T$ `$ v+ j3 s
end;
! `9 w- c T) h+ D# P (2) while <condition> loop
' l2 r/ D- g, T1 q6 ^8 j) L <statement sequence1>;
- j3 }9 S. j/ `5 f' | end;
+ W9 X( z5 }7 X9 Z (3) repeat 0 x7 h" s' _1 n& J: G" }9 Q
<statement sequence1>;
% {. }2 B0 ?! X2 {. H until <condition>;' s- a& G# G" `' @- R) G% f
(4) for <condition> to <condition> loop @9 S" E7 e( _; }7 m3 D0 V3 b
<statement sequence1>; W5 N& u# P. Y) {: L: ]% w0 c
next;- D P$ s/ N+ b) v5 K( Q0 e0 s
3中断语句
4 |) x, S" U6 R waituntil <condition> prio <integer expression>;( X- V- T: y+ N# S/ e
3 u: L5 P4 p% A
5 s2 j$ j2 c Q+ Z% x X8 v以上为常用的函数！; j- M( Z- O) m5 Z+ o; K
还有很多，如有需要我把资料发到你邮箱里
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