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发表于 2012-11-13 08:48:12
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1判断语句6 u5 b2 z6 U+ c, ]
if <condition> then. b" k4 {' @& K2 I8 c# F& |! u, `+ s
<statement sequence1>;$ @7 K, g _# f# i5 |2 Y
elseif <condition> then A& P8 P5 Q( k% b5 F! d% ^* x* N9 n
<statement sequence2>;4 G3 F; ^% K* G5 E2 m* C
else
, h2 g! J [) F& |# [ <statement sequence3>;
! V; j. h: f. y% [* n6 `7 C4 _ end;
4 V# I0 `' V% e3 y如果分支比较多，用：
7 F+ X5 F. u- X( w inspect <expression>5 P! z4 v8 h7 l
when <constant_list> then
8 E3 D, U$ M6 Y <statement sequence1>;
' } O8 e: X$ D' L when <constant_list> then
8 g3 B) D( k, K1 c( _ <statement sequence2>;
# j7 L; p+ S/ h/ i- j/ _ ...
/ v- O# p8 w; E% c0 e( i- Z else
7 e8 @/ j) _6 L1 H$ O1 E) Z$ g <statement sequence3>;# {. `. a: V Z
end;
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. J' [* ~: i' d8 C% A) V2循环语句 `' g/ Z9 `: P# N' [5 a& ]
(1) from <statement sequence1>( x3 G3 b: a0 M% D/ c! c
until <condition> loop
: R6 y! V6 f8 H1 Q" J <statement sequence2>;( t5 b# O: X5 k0 f- V7 C0 M
end;3 [+ W; N# N- O
(2) while <condition> loop
: A! L( f' O) O% d <statement sequence1>;
* ~* }/ g7 g, ^2 b end;( F' Z/ g' L0 _3 z
(3) repeat
2 m; a, J1 E0 i4 Z; ^ <statement sequence1>;
6 O0 Q4 G8 v& Z% C5 y until <condition>;
8 O3 x% o; ~; F$ Q8 I& } (4) for <condition> to <condition> loop3 {9 z- d8 {& \2 [" C
<statement sequence1>;( z0 C( i& e ~- r9 i0 i
next;
& j9 ~/ s& y5 Y: U4 X2 `3中断语句5 @3 H8 t% g+ {1 M+ S
waituntil <condition> prio <integer expression>;
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以上为常用的函数！) ]6 x0 i6 D4 K% A# _+ q( h1 P
还有很多，如有需要我把资料发到你邮箱里
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