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发表于 2012-11-13 08:48:12
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1判断语句
: C0 } g9 b- Z% o. ~0 d if <condition> then
0 I6 g& v$ ~0 t. z; r5 @$ ]( A <statement sequence1>;
# Q0 b" r0 \1 K1 j- K* ~ elseif <condition> then- }+ m5 R: ^& `& }: c! h7 P
<statement sequence2>;
% R; x' I/ u9 O9 u else
9 p2 Y! Q- O% J) q* m <statement sequence3>;( L4 f6 P- L0 D0 k% e3 u. `& L
end;
+ }6 c; d+ u2 }: z5 X O如果分支比较多，用：
: {' p4 c. H0 Q& i' m inspect <expression>+ c5 S/ v# W$ \1 b4 ^
when <constant_list> then
* U( ?# V1 m$ x% Y$ u6 i8 @! k <statement sequence1>;$ S' R' S7 J/ a# @. E( y
when <constant_list> then2 k. B! E# ^2 }: `. Q4 f9 S
<statement sequence2>;# V- l: ]4 d+ h8 K; e E: J
...- w& w$ W2 `0 L- d/ o
else: p& t4 [# L0 _
<statement sequence3>;4 @* }( p0 q% e
end;1 d& W8 N8 x4 \7 @" D5 T9 L
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2循环语句+ B1 h, N9 H% v$ `
(1) from <statement sequence1>4 {# } ^+ B7 } s
until <condition> loop, M5 V8 A9 q5 o! R" n( ]) K8 s
<statement sequence2>;6 f* F E4 K, S( e5 \5 A8 }( ~; q
end;
$ v6 Q }% m( u3 Q (2) while <condition> loop
0 O. X/ N3 ~0 l6 S <statement sequence1>;$ ?9 a( k* u( |: q% o
end;
! |! H1 w$ d1 @ {3 }6 N0 v1 `( @ (3) repeat
' j: ^" w A# h3 L' e <statement sequence1>;
8 h$ v3 ~2 e7 `# E' ^ until <condition>;* J7 h9 q1 S( W# d6 f
(4) for <condition> to <condition> loop M5 r q( G! m
<statement sequence1>;" w( q- i0 n5 V7 F. s
next;( W- X) }8 D7 T! P9 u2 x. s" f j
3中断语句* P: n4 w7 }3 z) P3 M
waituntil <condition> prio <integer expression>;
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: Z8 c2 }* C0 _; ?# n以上为常用的函数！
! J E! c6 T% s( ^4 L6 K' K" }还有很多，如有需要我把资料发到你邮箱里
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