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发表于 2012-11-13 08:48:12
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1判断语句, e2 A! k2 v- D! |/ G; \+ W
if <condition> then7 X! c, m) E) f$ h( \$ @, }, j& J
<statement sequence1>;- A( f% e& ^; n
elseif <condition> then
0 o1 z* c1 l; o3 {7 | <statement sequence2>;
' `0 J& f m1 U else
. Q" k' S: D! N( c1 V, O <statement sequence3>;
1 s1 r8 ~$ ~' n: E end;
) e/ K: |$ E1 E如果分支比较多，用：
3 h; S5 \* ~) }& ^6 U inspect <expression>
1 } d2 ~- X8 X& K% Z5 ~ when <constant_list> then
8 Q4 H5 k7 ?" g, x <statement sequence1>; M$ c; E8 M K: u. }, D7 S$ T7 L
when <constant_list> then
4 y1 O9 g# d& G# e5 Q& @: S <statement sequence2>;7 E# }+ v$ `. Z3 e$ G7 } N
...
3 q% I& l1 E5 K6 |$ R' ^; Y else' O* Z8 h+ i/ _$ _8 \! H
<statement sequence3>;# E) J0 k; W) `$ B$ P' Y
end;
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6 f2 e- A( u* ^& P' q2循环语句
1 ]) S0 N( C$ q5 D7 _- f5 J (1) from <statement sequence1>
: S; j/ Y* p- q9 B: K# e: {3 I* _ until <condition> loop
( W9 ^" q. j( G+ ?- Y& X% F <statement sequence2>;
+ h# w. N# w% Z5 W, q- K end;
: f: ^$ W6 _% C7 { (2) while <condition> loop: d$ a7 S: r* Y4 S: M
<statement sequence1>;
; m! ^0 M( X7 e# Z1 M end;
# H& v G; o5 | (3) repeat
& q' g _" c* ] <statement sequence1>;) }" i( c" _9 S! Y5 c d# J
until <condition>; [. E) Z4 w" ?, N: c8 v
(4) for <condition> to <condition> loop7 Y3 g* Y7 `5 V+ w
<statement sequence1>;3 a0 [& S4 c3 D# V
next;1 R# C. N4 A1 u9 M5 x# f
3中断语句! b, _ d! T6 w `/ l7 U
waituntil <condition> prio <integer expression>;3 b+ w9 J% A, E% R
9 r# _ z4 F! H$ G, v1 S
4 p1 Y/ h: l+ K( j" D7 W以上为常用的函数！4 p1 D: g; b$ N" N
还有很多，如有需要我把资料发到你邮箱里 * A9 d( r* F2 h5 v( z6 k
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