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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
# V ~+ ~$ `0 E3 h% K! U if <condition> then
7 ]1 R2 f8 x+ I E5 i( n9 G+ h <statement sequence1>;! h m+ Y. T! Q6 j
elseif <condition> then
6 e, t+ m+ H( R7 C <statement sequence2>;# L+ @2 `' H: Q) w) P$ Y4 V
else ; @+ `% u( Y5 ]& |
<statement sequence3>;
4 L( R) Y: u; j# B5 K) g; O end;
; D$ T' [7 m6 c4 s) l: g如果分支比较多，用：
: R' e3 a) @' J; }" F( z: w: ] inspect <expression>
& z* O6 k9 k7 c4 R, T6 A when <constant_list> then
7 ?3 t, P" U1 Q- p" ~1 ? J <statement sequence1>;
( Q4 k6 }$ w Z7 y when <constant_list> then
' o9 w( F( ^9 G# a <statement sequence2>;; M# `0 d- ?: A5 X
...
" N" I% Z O" e q! M else
/ y2 r/ v% [( m" O, N <statement sequence3>;8 j9 K, i6 K2 y; V! K, z. ~7 v
end;5 r! K4 B, ], U B1 S
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2循环语句
4 E* o8 v+ v- H; h/ U4 `6 b (1) from <statement sequence1>
, M- P* t; a$ ~, J: n; \2 w until <condition> loop( q+ I" T, q8 V. A$ r
<statement sequence2>;& R, j" V- D; p% M" P7 C& @) y
end;
) i' z3 A2 B! S4 l (2) while <condition> loop
5 ]* S. h& W, w$ w) A3 `- s <statement sequence1>;
. R {2 y6 ?/ I; ?& X0 y' [ end;* h5 s( a6 Z A- Q2 U1 d! b
(3) repeat ( \& N* G3 f% O: U
<statement sequence1>;
1 Z1 R7 R9 H( h9 V until <condition>;
/ y! r. ]6 {3 D! t3 W3 @% L2 Y (4) for <condition> to <condition> loop7 T/ J7 E! \, x) W$ G6 Y
<statement sequence1>;
+ U6 v$ |$ P" D7 X' L. Q next;) l0 R/ ?/ s) |! C! O$ e* y
3中断语句
4 r( _ C5 `8 G _9 K- K2 e waituntil <condition> prio <integer expression>;& W: U. N# R7 u+ y: K" ] K
5 D4 c+ {5 _ W5 ]. r8 a5 i5 t. Y) A* r% V
以上为常用的函数！
; R& _. F, z O) C还有很多，如有需要我把资料发到你邮箱里 ; i/ ]3 L( v1 l, I% d" ^) C) G( j
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