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发表于 2012-11-13 08:48:12
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1判断语句 q( B x) w9 ]+ |
if <condition> then0 m! M( W- C. i6 |; ~3 d3 s
<statement sequence1>;
0 z1 T; J$ M9 ~; q2 w. ?2 J elseif <condition> then2 @- `0 T8 I6 h0 ~) {$ ]: |+ J
<statement sequence2>;/ Y* ]7 X9 X# n; Y6 v; W8 u
else
2 {$ J; a( C+ `, N7 K6 F) @ <statement sequence3>;
G. w; \! k0 s2 l7 G end;/ B A% f( F7 A; E4 {$ s+ |
如果分支比较多，用：2 R0 F4 l: C) Y- H# K; a, b0 j* e
inspect <expression>
* Z" `' B8 L' @ B# x4 l L# y) t when <constant_list> then6 |6 @4 d2 r' w/ R
<statement sequence1>;
. c. k2 K3 R7 X when <constant_list> then
& d; f Z3 O3 G1 E: Q' j <statement sequence2>;
- i3 b5 _ ^0 e7 O& b ...
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<statement sequence3>;; z; ]. W% F |: j. ?
end;9 w _% Y# Z+ ~# S" } f v
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2循环语句" c* b3 s7 a7 [6 g; B* O3 m% S
(1) from <statement sequence1>
+ W# ?/ G8 ^- Z5 I: e until <condition> loop2 ~5 [5 E. j" e Z
<statement sequence2>;* Z. X% Y4 M/ ~: f2 O7 |
end;4 E- R$ n7 _+ _' `
(2) while <condition> loop- M2 z. Z& l6 E: _
<statement sequence1>;
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(3) repeat & P. j k5 o, ]# z% D
<statement sequence1>;2 n5 ], ?/ q2 ~' K& o! X# ]& ]
until <condition>;
K! l7 N& N- ?5 X- s' p (4) for <condition> to <condition> loop4 Z; s8 u" M, }" {, r7 D% [6 {. `
<statement sequence1>;
! h% C1 M \4 K8 Q% ?. k next;
; ?5 j( k4 Y/ n1 Z5 g7 c3中断语句/ T% w' Q2 H, } b7 X) o
waituntil <condition> prio <integer expression>;
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$ j; _/ W6 C. x, j6 t9 h+ X5 s" A# X以上为常用的函数！ G w# B2 Y+ N5 w6 w1 j5 N( W
还有很多，如有需要我把资料发到你邮箱里 2 L$ [4 C0 H+ V' K: P
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