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发表于 2012-11-13 08:48:12
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1判断语句
% H: H0 M5 r( r if <condition> then6 S* j: d, K9 {% V
<statement sequence1>;
- `4 b+ F2 k0 B$ N8 F" m7 b" V4 F elseif <condition> then
$ D9 A) z( Y* \# _: s1 t) Q. m <statement sequence2>;
9 ]' v% a6 q6 I2 ]. e4 d% ?: k3 \ else ! W7 \% {- n p2 d( ~% w
<statement sequence3>;
3 _9 U! I; s4 @6 I" E end;
3 c7 Y. e- y. F! k9 g如果分支比较多，用：: H# N1 x5 S: A4 I1 [9 K5 K( t6 p
inspect <expression>
3 S9 l W" t% {- e when <constant_list> then
+ u* z) |2 u$ ] <statement sequence1>;$ g% w- w9 Y, S
when <constant_list> then L) a; K4 E5 F, X$ x$ [, S
<statement sequence2>;
7 F; [5 ]. K- K. U i& b, n3 O9 ~5 i ...
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<statement sequence3>;! a' a3 T! O0 X4 j. C
end;
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) ?" R' Z! k: i2循环语句9 T, V2 a- y) T- O, ?
(1) from <statement sequence1>
/ b3 `' C0 E# _3 }9 @; j until <condition> loop
' \, O N9 E9 a: U <statement sequence2>;8 P6 E8 r% W4 ^+ ]5 [$ V! `% k
end;9 Q" U9 v8 Q! g" z
(2) while <condition> loop
2 \" P. U7 M. h% W2 O8 Q) _; D <statement sequence1>;2 O' J& u# ], n4 e
end;$ e; x$ e& `7 c/ b H! h9 d
(3) repeat
6 d( B; P0 ~: X# j7 G6 n4 M <statement sequence1>;
3 ]9 Q, N- w$ N' N- T$ u until <condition>;
: T8 y/ i0 I6 T. q (4) for <condition> to <condition> loop
2 u7 E, Q/ n) d' n9 _ <statement sequence1>;
% O: L% `7 _8 F1 a/ ]# w next;2 I3 k. P* F, b' k
3中断语句4 R3 R; e' `3 u
waituntil <condition> prio <integer expression>; K. j1 h$ z" {6 |2 @8 b
8 k' M3 h9 ?6 d" A7 ?
" e2 Q% T- v2 \9 k) c" E. x以上为常用的函数！
2 \1 \' r* {+ a+ ~) \& w4 W- C! w还有很多，如有需要我把资料发到你邮箱里
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