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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
" ^7 V- U: r" o" D) }- e if <condition> then- L! C; M" O8 o1 y
<statement sequence1>;
7 x2 D- F7 G2 `) R/ d1 X8 B# O elseif <condition> then1 d* ]& {. @4 R. k R7 Q
<statement sequence2>;
+ q& f4 t6 q T3 H6 W1 [# P else
p2 r% a/ Z0 M7 C4 \" X4 j0 ^ <statement sequence3>;$ E$ M" F3 J) |. W
end;9 a. O5 M- V9 }% [2 u6 F- r
如果分支比较多，用：& w4 U' R" k `+ N5 L
inspect <expression>
0 ]( [8 X! Z$ Y) N when <constant_list> then" S( D1 p$ Y" f/ x' F; J; Q- x9 r
<statement sequence1>;, G- I; e& R3 d# p
when <constant_list> then# i# u, e/ c7 G- G% ~3 N$ T
<statement sequence2>;
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else4 {+ Q4 A& ~: [$ G/ ` q6 f# x% h/ T
<statement sequence3>;# A+ I# H! v" |
end;
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2循环语句% H; [- v' R9 Y. g
(1) from <statement sequence1>
: r9 _6 |- Q ^0 W# Q. G# \ until <condition> loop
* }) v" B4 x/ |; Q3 u; z9 | <statement sequence2>;8 k/ d: `5 E* Z! f+ V% `
end;
, T$ K; e) u/ i( Z (2) while <condition> loop' K: X' [( Z) C, R' @( ^& h
<statement sequence1>;; V1 S% ^ I0 r1 W
end;
0 ]! k( X; A; i7 u (3) repeat
$ Y- W0 P8 k+ F' H: x* S <statement sequence1>;8 v l7 H/ }/ q9 Q
until <condition>;0 I2 M- C/ y4 D6 f$ g" A2 ?6 P
(4) for <condition> to <condition> loop/ x) W/ b3 K! O# y
<statement sequence1>;# c9 r y, o( I' i
next;, m1 e# O4 }. n0 V/ z1 b8 T
3中断语句
# Q- n! j; k" E3 ?0 R waituntil <condition> prio <integer expression>;
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2 _3 b( d" d/ ^0 H0 [; h9 \2 X以上为常用的函数！
; Y) o( `7 V+ k6 ~ T( X! u4 T还有很多，如有需要我把资料发到你邮箱里 7 l" {) ] g5 z) c+ S/ r5 _
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