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发表于 2012-11-13 08:48:12
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1判断语句" W0 a# u2 i* Z' |
if <condition> then
], f* t1 x4 k7 z8 y0 U <statement sequence1>;
X |9 | e9 I C elseif <condition> then
0 L4 U9 u2 Y( J* I <statement sequence2>;
! v6 W4 N4 z5 S* @( c else
7 P% U% A+ ?9 L n <statement sequence3>;
! L/ h' D! J0 _$ l. I end;
3 m- K6 ^& @$ ]3 ]3 T2 @如果分支比较多，用：
2 }* {! O$ C+ }+ {: A' d7 e; a inspect <expression> t7 u1 w Z: m5 M6 K$ Z/ V. c
when <constant_list> then( M2 Q$ s# G, Y2 k/ d
<statement sequence1>;. k6 X' s# |# j/ {$ c
when <constant_list> then+ z' ~5 X7 G, [0 ]' e' O
<statement sequence2>;
( p% {& }- _6 s3 t* e3 [0 F4 q3 N ...
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<statement sequence3>;3 k. o& v) t$ N. K. D) }3 t. i( f
end;
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# f% i, M$ Q2 F; g6 D) d0 Y3 e; h2循环语句* A, p3 I5 T% w- L# C" G j/ T9 f
(1) from <statement sequence1>
- S8 G/ b5 i6 J# Y8 f& b- m until <condition> loop- E; x3 U4 }6 ^4 e& ?1 h# `
<statement sequence2>;! s) t& x! y( K3 T
end;
1 T$ i9 J: W5 e3 D (2) while <condition> loop
. z% @9 [$ r2 M1 ]- D <statement sequence1>;
# r$ E. L* j" W end;' R+ k B2 K+ X+ B ]' R& t, z
(3) repeat
. V3 m% X1 e- g& z <statement sequence1>;
4 K* k2 g1 j$ g0 u; i until <condition>;
1 c. j7 |& m" i8 \- {0 y$ K (4) for <condition> to <condition> loop# ]! t; G2 A( `6 L2 Y1 Y( v
<statement sequence1>;
3 a t- C" c- \9 P5 d next;
h: [1 E0 K- ]4 n8 f$ }3中断语句
. M$ T' i0 `0 E O: [% @ waituntil <condition> prio <integer expression>;
: U8 u5 Q* A6 s: I! l B7 K
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以上为常用的函数！
2 [5 m$ \: h1 o' z$ t) Q6 U" L还有很多，如有需要我把资料发到你邮箱里
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