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发表于 2012-11-13 08:48:12
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1判断语句6 _+ q3 j$ k# l/ V0 x- I
if <condition> then7 K4 X+ i3 Y; @: x( {
<statement sequence1>;
: v; T/ A0 c: S) E elseif <condition> then A9 u w ^( ?& I4 e
<statement sequence2>;
5 K0 W9 ^ {& R else
- ?! n! }# @5 J, U& r1 r <statement sequence3>;
( d7 U: h$ L0 s4 w end;( x) e1 v0 p6 I2 G5 }
如果分支比较多，用：1 p! B I/ V+ r& ^! X2 p
inspect <expression>
, J; r3 J* s9 |* C1 B9 t when <constant_list> then5 g" n) ^$ B6 Y3 R
<statement sequence1>;+ o) h3 |1 ^0 Q# k+ B
when <constant_list> then
5 I& G5 a% _7 v <statement sequence2>;
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else& D! V3 [4 j; B2 u9 {
<statement sequence3>;+ h0 c7 p0 t& X8 `
end;
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2循环语句
/ m x& y/ W: [* W& ? (1) from <statement sequence1>
; m- N$ S- p. Q. k until <condition> loop5 R$ H! @' u& o$ C' _
<statement sequence2>;
# _2 a0 K! F" } end;# l/ E! ~. G$ a
(2) while <condition> loop
+ {1 D+ r: r1 p- L/ z3 a1 T( h <statement sequence1>;' d" W* s9 I- g2 O0 L( o4 V
end;5 u: \( N3 a& q9 Z8 k
(3) repeat
+ H5 O: T4 S% @+ q- P7 V9 N <statement sequence1>;
, c& K4 J: o9 W/ C+ e until <condition>;
4 K. k& u0 @* V/ @2 d9 K* F (4) for <condition> to <condition> loop
7 j. M+ `% }+ Y m6 Y <statement sequence1>;
; ]% z5 x2 U `# ]# S, c+ _ next;3 M0 ]1 R( T X' A
3中断语句
8 O/ l& s. Y* r9 i7 O5 O, F) T9 Q* ` waituntil <condition> prio <integer expression>;. f3 I8 J; Q2 K% V; A) `" V
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0 ^$ q; d- N& Q9 I: U! p" n以上为常用的函数！
2 c& ^8 g+ X$ {, c; Q" Z; g! L5 `还有很多，如有需要我把资料发到你邮箱里 j! p5 z5 g* P% U+ \6 Q- Z
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