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发表于 2012-11-13 08:48:12
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1判断语句3 `6 p! I1 p8 l6 u5 x8 y
if <condition> then0 U" o, I, M) a# P2 P
<statement sequence1>;6 a* z7 g' t0 j5 q: ?3 M7 }
elseif <condition> then
8 r/ x; ]4 i% q1 U1 l <statement sequence2>;
0 ~1 s+ E3 j: W, V else
, t$ Z! s6 B- K. n2 L6 }! i <statement sequence3>;7 u$ z6 C3 H% N9 T' `& ^- z+ e' q
end;8 b- D1 ?& d+ |; ~4 Z5 k4 J# V
如果分支比较多，用：2 O, N/ ^% C' { I( F" x
inspect <expression>
8 [2 Q# S+ d$ h/ S' y/ d }/ d' s when <constant_list> then
2 @. V& ~9 T, L5 }8 h <statement sequence1>;: W2 {! F8 L- e2 w+ |
when <constant_list> then5 N; Y+ {# j; i
<statement sequence2>;
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else3 V( l0 ~: t) X5 w2 w0 ~/ K
<statement sequence3>;
2 v* f2 {: X5 M; @: v( U' Oend;4 F- J/ N; _9 @9 ?& A
5 {0 }& l k+ _& L
2循环语句' L6 ]) K0 A1 Z: W, H( @9 c6 }0 _
(1) from <statement sequence1>
7 G: l- {; j8 Z! F until <condition> loop
A0 T: {) k2 c/ d3 i1 Y/ F/ _ <statement sequence2>;* d2 ~- @ t! m( E+ g d
end;4 m0 A% \' p- @9 n- q; c/ z$ w
(2) while <condition> loop
, B9 E' B3 ?1 C# w9 g+ m <statement sequence1>;
9 X0 y' k" A# C/ q9 M' L) ? z, H end;
% i4 m. i! _# S: [# j (3) repeat
! t$ ?$ `/ u- a; c! A$ u# Z+ Y <statement sequence1>;
( i% I: |6 m5 { until <condition>;( ?' o& i a/ r; t2 Z* ?( B* M5 T
(4) for <condition> to <condition> loop
( o' u6 i' f$ b) l <statement sequence1>;: N' A, i9 B1 D O) }
next;
& X; U; E; l2 W0 @/ Z- t3中断语句6 `1 u2 N; J6 z: i" J& d1 B" \
waituntil <condition> prio <integer expression>;2 w+ d, z0 N& E" P; ~2 O' q
2 ~0 b! q, \" }. M/ Z
; U. s r0 _9 r7 ~% h以上为常用的函数！
& `& N7 ^) `. m) v7 v+ y还有很多，如有需要我把资料发到你邮箱里 # g/ W n9 B2 |+ S- F
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