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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
9 E9 }" a3 C7 Z$ @( ]' W; g; B if <condition> then- _7 I& B2 }6 B0 f. |$ c! B: T
<statement sequence1>; k/ V1 c& d# w6 w% x8 x c
elseif <condition> then
' \. I0 t) {* B) J8 m, n8 E <statement sequence2>;
' w$ y8 A2 ~9 v7 E else
* y5 a4 U/ w( ` <statement sequence3>;% I( y) a9 Y( |! y
end;
/ f- q) V" g+ k b& J5 c如果分支比较多，用：
$ U% \4 z$ O! Z inspect <expression>5 D, D( M( |0 X) A0 l% h
when <constant_list> then1 Y+ _% o- A/ K) C2 @
<statement sequence1>;/ z' s* M g; ~
when <constant_list> then( |3 E- e5 \2 n' l
<statement sequence2>;+ _% e6 A. { y
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else7 x2 {$ v9 [6 W. Y4 d% `, L, z
<statement sequence3>;5 v! b) y$ q: W; H' ]
end;
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2循环语句. _/ g1 m. f2 J# a/ ?
(1) from <statement sequence1>4 ]5 }, a" a, I" b* ]8 ]
until <condition> loop% e6 @ t5 n) b3 I( E
<statement sequence2>;; Z( O* W( ], z0 ]' `) i9 @
end;3 ~1 D w5 d. |% `1 _
(2) while <condition> loop
& a+ ^5 y1 H* d <statement sequence1>;
7 P- y0 }2 I8 v: j Q$ [ end;1 J/ a( ~9 y6 p0 {
(3) repeat 3 \9 ~( W* y. y! ~) z% c( z, D6 m' z
<statement sequence1>;8 G- [6 }' L( c9 {
until <condition>;# b% ]& e( F% K; i* {' @2 L
(4) for <condition> to <condition> loop% B1 k: X% [ l; i% [9 h0 H* a
<statement sequence1>;
! W& [. k7 T I% u* O next;% e2 `7 q4 I4 Y# J" A% R
3中断语句
8 i- P! T5 c) R6 Y6 R N waituntil <condition> prio <integer expression>;- w$ u, z# v1 d' N! b5 j
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- M1 Q7 w) D' S& o: F! ~8 `$ U以上为常用的函数！8 }# C3 p) p M. v6 k6 N
还有很多，如有需要我把资料发到你邮箱里 ; c9 L H" Q6 R1 |) g: Z) M
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