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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句; S& N- \( S6 Z W( R( b8 }/ G
if <condition> then
' P4 {7 X8 R b y( d% y9 v <statement sequence1>;6 U# }' K5 c; O1 x8 Z
elseif <condition> then
4 i4 N+ M' ?( o# ?. Q <statement sequence2>;
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<statement sequence3>;3 R7 {+ L8 Z; D
end;
/ A' x% I! Y4 o- X5 d如果分支比较多，用：
1 X4 U, D8 Y) W9 a1 E2 b) m inspect <expression>
9 ^. r8 @ O$ Q7 N when <constant_list> then; p6 y, t4 H; N, l8 a6 o
<statement sequence1>;4 o K- L, o, c: S( [* j
when <constant_list> then7 A1 O( w7 x, Q! [# h$ Y/ W* S
<statement sequence2>;
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else' H! c5 @2 S1 } d/ l( k8 D, P2 P
<statement sequence3>;1 a4 l% p" _7 B7 O
end;( U( `: i0 [$ I$ o
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2循环语句
, L, v4 h6 f2 f/ E7 x+ G (1) from <statement sequence1>
. W- j: o; @2 F7 l5 T9 Y$ ] until <condition> loop
w E O9 h/ t4 f7 c <statement sequence2>;
8 e: d% k1 r3 h: v( @9 W end;
]/ P+ h6 }; Y* @6 Z' a9 Q (2) while <condition> loop( @$ w5 {. w& Q# B/ p3 s
<statement sequence1>;& X" a' N* W6 M( o
end;
1 ]% y$ d2 R6 ]2 h; K N/ N' C (3) repeat
* p5 G7 p' R. O; b <statement sequence1>;
; W) g; u5 L' h$ h x4 T# ]4 `: y until <condition>;
' _& w+ r# U9 } P9 o" ^6 W (4) for <condition> to <condition> loop! X* J3 t, H w. F, s3 {
<statement sequence1>;
# ^/ ~9 U' D O M" [0 | next;3 j- @( U! |9 q8 [7 h: p( I
3中断语句
+ ? [, D% s. Q$ Q5 e( { waituntil <condition> prio <integer expression>;
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以上为常用的函数！
- T( f3 h- z) }2 B. N5 h5 S还有很多，如有需要我把资料发到你邮箱里
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