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发表于 2012-11-13 08:48:12
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1判断语句
+ p% d! p$ [2 Q. k* u if <condition> then1 [! V3 Y* }, h( Q
<statement sequence1>;9 |4 N3 A" d0 Z6 Y4 ?
elseif <condition> then
& A) N# N; E( t8 m8 i% O <statement sequence2>;
D! ~( E1 ~1 a8 w1 ~ else
) |2 s. A% c, L+ T( ^( @: d <statement sequence3>;
: t. q6 e L9 j; v- [: ? }) w end;$ p1 Y/ t( y4 O# y: @, U! L8 d
如果分支比较多，用：
3 E2 W- d5 H: _# R* v" L9 I, ? inspect <expression>
& ^# |( E% e" a+ w; |9 h# ` when <constant_list> then
- P, Q. ~/ v& Z/ f9 y2 @ <statement sequence1>;
6 f" A+ j0 z6 |9 h P+ B when <constant_list> then3 `( ?! [2 @" Z
<statement sequence2>;
& l6 c i8 N( \& M6 X. d+ N ...
! m- M' Q3 F2 s# ` else
# L: T- c) Z) O5 f1 b+ d q <statement sequence3>;& ]3 c$ p ]( A7 z& W1 V
end;0 D: v* k; k# q- Y. b" C7 ]
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2循环语句6 n; R5 N r8 I% R: C+ Y' O/ ~: Y
(1) from <statement sequence1>
* L4 z' A+ k/ Z0 J/ U until <condition> loop r0 O p% j- s: ]; ^
<statement sequence2>;
( w( Z4 X9 }3 ?1 `! Z end;5 h- ]* Q+ W& T6 c2 D8 _
(2) while <condition> loop( t3 m* b5 m O+ z
<statement sequence1>;
* U% |" S6 A5 s& \0 z6 {; Y end;* F v7 W* R1 I3 A6 s( c, j
(3) repeat 5 V) e$ T. r& K" C* l# ~
<statement sequence1>;6 \; K8 o+ t2 G. ]
until <condition>;( F) r% @& p( f. ?6 Z( g
(4) for <condition> to <condition> loop8 L7 Y* y; ?/ Q' _
<statement sequence1>;! b K0 }" a; Y2 d4 s# b8 J/ n
next;. K. M' B% ~( b- p
3中断语句 m% [* L8 a: M. ]& M
waituntil <condition> prio <integer expression>;: ^9 ^+ a- ?' E- o
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以上为常用的函数！3 k1 w; d( m! g& `
还有很多，如有需要我把资料发到你邮箱里 1 }, \1 V8 {8 R9 B
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