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发表于 2012-11-13 08:48:12
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1判断语句
) E. \% c1 t3 o* Z& ]8 D. j if <condition> then
+ m9 d! D2 ]4 t8 u5 ~2 @ <statement sequence1>;
# g# g! s4 F. K i% P* m; B elseif <condition> then
" s4 F/ `; p9 `8 X <statement sequence2>;
: m6 h" ~& {- x- I) ^. v3 Z else
" s9 s% x w* D! n5 ~2 j9 [ <statement sequence3>;
$ W, J) t8 n6 f/ v( P end;
: {6 F# q" a0 w R1 M) m1 o如果分支比较多，用：
8 p" o( P0 v6 v/ x# D$ I# c3 \* H; J inspect <expression>
, e. s; P/ s& v when <constant_list> then
- t; i7 ]# v0 E) U+ h <statement sequence1>;
+ f$ `! R( _; f8 e/ c0 } when <constant_list> then
|' O9 j' [/ H8 H6 \: K) C <statement sequence2>;' h: z$ F, |3 k9 L4 G& b4 w) w$ W
...
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<statement sequence3>;# T$ ~# t. y; R3 Z4 c, H
end;
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2循环语句
% |- r8 q' ?7 n6 X (1) from <statement sequence1>
" f% K" F: Q( |$ s6 |3 g8 ` until <condition> loop7 W8 L$ m# k% v' ?2 }
<statement sequence2>;* F) c) N4 x' \; I1 h% D
end;6 B6 D( D1 ~# f, f, _
(2) while <condition> loop
) `: f: ~% D- r, l3 h# A' R/ B' j <statement sequence1>;, w$ W4 a! h$ f6 s1 w8 c1 x
end;
- g) D$ G- z" i s. v# a (3) repeat m3 p7 p- O) K1 ?" C; a
<statement sequence1>;, G9 a4 s7 t$ [) r' o s9 C7 M; v
until <condition>;
, L& p! s& ^4 Z6 W9 n (4) for <condition> to <condition> loop
8 ^7 J$ X% N1 {$ m. k; y2 k <statement sequence1>;+ W' m. G( ^ x, A- y
next;
" j3 ?# }' ]$ }0 V5 }3中断语句/ B0 w/ q% c1 ~
waituntil <condition> prio <integer expression>;0 r$ T' R* D2 I2 G) b1 J) R
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以上为常用的函数！
7 x! N! H: P A u# y& \1 _: _还有很多，如有需要我把资料发到你邮箱里 . |6 l" y# Q7 {. c% v* z
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