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发表于 2012-11-13 08:48:12
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1判断语句' V: S! @" S: ^3 t
if <condition> then. b3 R5 T$ \ ?4 U9 A% V' X
<statement sequence1>;; d) U7 q X7 x- U* ~7 D' X4 d
elseif <condition> then
; P7 d5 } T5 T: E" d <statement sequence2>;" m4 n: x' X6 {# _
else
! U h+ D5 z3 `8 I! [8 L <statement sequence3>;( i/ j0 M0 L! Q1 L/ S
end;
2 o; ^' C' E! Z- d( u8 D如果分支比较多，用：
# b6 a1 l( T; \0 B inspect <expression>! Y2 k) j8 P5 C7 T+ d
when <constant_list> then1 R6 }! X6 H! f' O3 Q3 k
<statement sequence1>;9 u+ A4 ~9 i) L5 b: V4 H; X
when <constant_list> then
. d* J4 T# [" }: ~7 `; A g <statement sequence2>;
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else
, {8 M1 N' Y; t6 Z7 p <statement sequence3>;* V) X# P# G( B9 f
end;* N v- d# ?. h1 N0 S' C
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2循环语句; R6 |/ B( `7 \5 Z6 W& p8 D" o
(1) from <statement sequence1>( `9 m9 w: L+ R$ g/ p* h. G
until <condition> loop2 E9 V1 T0 `! g5 H: ^" W
<statement sequence2>;
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(2) while <condition> loop& a4 z d; `$ s+ Q) L7 ^& T
<statement sequence1>;5 _$ X! Q) F( E
end;
6 x5 [- F- P: Q. i: y8 m3 R3 A (3) repeat $ M- x# t) B. _" k9 k
<statement sequence1>;# k, X2 L# K# m" _; \3 p
until <condition>;
' _# r+ Y u; z3 d. a+ f3 A (4) for <condition> to <condition> loop; y" a/ A. Y4 ]1 ]' ~9 l5 W) I
<statement sequence1>;: ~' d+ Q0 b* d. n" v
next;# d5 r, w/ x8 |
3中断语句5 ?( c3 j" z9 s
waituntil <condition> prio <integer expression>;
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8 \* J( e% M" Q以上为常用的函数！" A0 x$ d) X& ~0 v
还有很多，如有需要我把资料发到你邮箱里 9 B& b2 g- w% n' N Y8 s8 f
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