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发表于 2012-11-13 08:48:12
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1判断语句5 [+ o' ?- i" U) B$ ]
if <condition> then( m6 ]3 P6 }. h8 H% L1 a
<statement sequence1>;7 v/ Q. E* M1 w0 j* C3 [. a! `
elseif <condition> then
+ E' p% a6 {3 D) | <statement sequence2>;" j6 ^+ u1 A. o& ^0 G2 l5 _
else
, U9 L P o0 i2 @ <statement sequence3>;
; y0 ^* U2 ]6 { end;; W B4 s8 r0 r+ d
如果分支比较多，用：
$ C3 b" A* ]8 r5 b7 R6 K inspect <expression>0 u# L4 r8 r, E3 h0 X+ V4 d
when <constant_list> then
/ V e# N4 d! c3 ?9 {& X3 K5 c- v <statement sequence1>;
. [; C4 `% S4 f& O when <constant_list> then }8 o5 }9 m( Q6 ^; l
<statement sequence2>;: l8 z4 f5 D G. `, a$ p# @" q
...8 Y+ {# E+ V+ @% O2 Z1 x
else P! `! U2 O+ n; N; X% `
<statement sequence3>;; V! N' _4 q. \% H7 U* A/ W
end;) [# ~) e! ^$ }" p+ D
1 C4 N4 ]- x% o7 `2循环语句
2 e+ U) y: \, w9 N; m (1) from <statement sequence1>* u s |+ d; O7 `% C* \ h2 b! k
until <condition> loop' `8 v& \2 ]: Z! e2 |' _
<statement sequence2>;" |" U& |" k5 H* |) L6 ]& T
end;' z1 a% v& l9 y, ]) R
(2) while <condition> loop
3 V3 q& [. S4 N8 U <statement sequence1>;# }4 Z- W0 T# p2 g! [5 J( t
end;5 m2 e( u: D+ E& t' h! C( g
(3) repeat
" a/ y6 ]9 F6 c3 Q0 l& Q% ?: n <statement sequence1>;/ p) |7 [# a: U# h8 x2 `) d+ ^2 k
until <condition>;
" A: D! T5 d8 k2 R" Y, I (4) for <condition> to <condition> loop% p' o( [, P1 c6 G; m& x
<statement sequence1>;& g8 D2 \- p* k! v7 t4 o2 R
next;
; G( [+ Y% F* \$ F. @3中断语句
0 P) @3 E/ c/ W2 |% Z( T2 p% X' v waituntil <condition> prio <integer expression>;& N- w; z0 j# v9 I6 x" [
0 q" o8 h% n n& }
) \; i4 @) Z0 T9 v以上为常用的函数！! D" E! i) n6 o5 n- `9 v: X( c4 B
还有很多，如有需要我把资料发到你邮箱里
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