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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
; `5 e' s6 }* C) F% ^ M$ e if <condition> then
. b. N3 e n) j$ e' G2 i <statement sequence1>;" W9 V! j% A- u* L: c
elseif <condition> then& N0 D& `5 D/ R( R! [
<statement sequence2>;. U% Y) F' U& U0 m
else % s; E# N- w V
<statement sequence3>;4 j$ K! L0 `( }1 G. b1 k! \7 w
end;! Y+ B3 B4 M, H
如果分支比较多，用：" S; A! l3 g9 [/ h8 y* x
inspect <expression>
7 l U* H/ N! \6 X when <constant_list> then/ h. M, h3 t( q" w6 `
<statement sequence1>;4 s+ {' W4 ]1 x/ ^% D
when <constant_list> then
! X) D# b7 Z2 L1 t* V Z9 ]2 @ <statement sequence2>;. X+ Q( c* a0 E, j+ ~7 H5 A& ^
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else
/ x1 b( @3 x6 [# N <statement sequence3>; Z1 ]: e }0 X; I. F
end;9 @: l! k8 f" F4 R/ T8 x
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2循环语句
# I4 H' ?- R0 n( b5 e4 s (1) from <statement sequence1>9 j/ m% P; ?) g5 O# g+ Z. r. @
until <condition> loop+ g& d v u$ n1 r
<statement sequence2>;
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(2) while <condition> loop2 L$ w# b8 j# O6 h9 J: T: E- Q
<statement sequence1>;$ C0 `* K3 A+ F# d: h0 J
end;+ Y. C& Q. e3 I9 I/ {# s) w
(3) repeat 2 g2 B9 V9 x0 d8 ?, W% m$ _. z' N/ B
<statement sequence1>;
. O: Q. i0 H5 T' w9 E/ Y until <condition>;4 A" a4 z$ w( `( W% h
(4) for <condition> to <condition> loop
' E" Q8 N# J" W <statement sequence1>;
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3中断语句2 B7 @( r+ L/ e' K# n: z3 \& ]$ t6 O
waituntil <condition> prio <integer expression>;2 p- p1 j! A+ S: u$ c( I
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2 n t; E9 ^& R3 v R以上为常用的函数！0 [0 K: Q1 v8 C5 h
还有很多，如有需要我把资料发到你邮箱里 ! w- U* Q, D V* I
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