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发表于 2012-11-13 08:48:12
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1判断语句- a& i1 u. h# ~ G) R
if <condition> then B+ ~& L8 ~& D c
<statement sequence1>;
9 M1 T% O E' e7 {% i. d C; | elseif <condition> then' Q( R0 n: D# ^% N" O2 g* }# ]
<statement sequence2>;
1 ?5 N% x5 f: Z" S else 1 e2 A; ^# ^% p6 Y# i
<statement sequence3>;' o6 b; _: w* q, |' m
end;
0 }+ q: S" l0 j" N% g3 P如果分支比较多，用：3 z( P+ K8 [1 Z& {! E# j0 L
inspect <expression>
2 G, I2 C& w8 ~) }, W$ o2 L) U3 e% N when <constant_list> then
, s0 S' ?; |$ n <statement sequence1>;
4 P- j* \9 c3 @( t' t" l! L2 t when <constant_list> then
/ \( Z" _' {7 N; G6 L <statement sequence2>;- R! n$ A, _/ B4 ~' Y6 o
...5 m1 \& S! X( B% w' Q
else9 i5 Y1 g8 V+ ~( P) Q2 {% P, R
<statement sequence3>;$ A" ~7 {& t; Q
end;
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9 {( A4 W- M8 A7 |2循环语句% v; y5 T* N& A- }, P1 z
(1) from <statement sequence1>
9 u" i- Z& p8 w) c; n+ R L until <condition> loop3 o. d/ J: y' \2 @' v" k5 k
<statement sequence2>;
4 A+ A3 x9 `" _& E9 G end;
; m' J% s+ z6 I5 e. ]8 u+ X ` (2) while <condition> loop4 I. r) y* p1 l# k: a
<statement sequence1>;
& N$ c$ b2 L& T% I end;
( v9 O) W1 j3 v$ @. E2 h, @ (3) repeat 1 f* Q+ y) x( Y
<statement sequence1>;4 I# _1 t) q3 R0 i# _
until <condition>;" |" a* c/ I9 M8 r
(4) for <condition> to <condition> loop
# {8 x- h) F& Q5 }1 ?( |3 F9 G, q. v <statement sequence1>;
$ n# s% r! u1 C next;8 Y( U# X% e# K6 @7 E! l0 I# ~4 h
3中断语句: Q1 }! ~1 T( E. L! s2 F. s
waituntil <condition> prio <integer expression>;9 ^* ]7 o% P' T
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+ {+ m T, f) g0 a& e以上为常用的函数！2 G- E4 K3 \# b$ d
还有很多，如有需要我把资料发到你邮箱里
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