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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句" L) R' W8 j1 D7 w! O3 [
if <condition> then
+ v$ Y( o1 { w# @% B8 o3 [ <statement sequence1>;0 O7 a' c8 S; R8 H3 @6 Q0 Q
elseif <condition> then
+ }, I/ B9 Y6 G8 w <statement sequence2>;0 p/ K# x: z& Q w+ H2 x
else 9 y- p3 _6 g( R* O& V
<statement sequence3>;
0 B! t- o) i, D. @. _1 @ end;
: F) \; H5 N9 G' \! @如果分支比较多，用： l1 O1 y$ p9 f2 A: _/ A6 V
inspect <expression>
7 T9 \" ?" ^0 q) X" a when <constant_list> then. E, s# ^; S& A: N3 \" y
<statement sequence1>;
2 Y) [) E% Z4 \" w2 R when <constant_list> then
7 }6 Y5 l) W- V6 U" ]* Y0 F. V/ ]6 Q <statement sequence2>;- \0 K0 ]: _ I+ f
...
3 e7 y/ c+ e0 A4 i( I+ R1 O1 n else
( X4 C6 H* y$ ]$ k$ G <statement sequence3>;
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- O$ l& i2 r7 _6 m; Q/ {
2循环语句
e% y2 P* c0 G+ s( N* |3 c! n5 Q (1) from <statement sequence1>
$ n; o$ b8 u+ }% b until <condition> loop
( s+ M( w' C. M. A <statement sequence2>; H/ W3 G0 m1 Y) @. `( Z& {
end; V% k: B1 K- O! y: x3 N0 I
(2) while <condition> loop
5 H* M5 N y: w# _3 P9 |" [ <statement sequence1>;
' a! g1 Y% Z( }3 w end;# V, T( R' ~% [: g- T8 P2 k
(3) repeat ; F7 m7 W# y) Q1 p, T
<statement sequence1>;' I# m2 c6 u6 J: K( x4 ~) t
until <condition>;6 t; `* u- x3 M
(4) for <condition> to <condition> loop8 h% T! q9 ^# ]3 n
<statement sequence1>;
8 Q4 t% q3 `* Q4 `4 P next;5 p5 [* H2 P& s4 P3 W, `- E# o
3中断语句
/ Y# z3 c$ d# \8 u" C0 x% H waituntil <condition> prio <integer expression>;
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0 \" j- G+ J. t, {0 W
: _- ?$ x: A# m: J$ _以上为常用的函数！7 }* @! m; A/ }& w7 {
还有很多，如有需要我把资料发到你邮箱里
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