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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- j/ S+ x4 _ if <condition> then* L' m- W" Q, y
<statement sequence1>;1 u4 j; x7 _9 H
elseif <condition> then) L6 O$ s9 {6 f7 c
<statement sequence2>;; S: _: ^; u) Y6 o0 `
else
: q2 p- |6 \; I4 D- G8 c <statement sequence3>;
4 l4 d' _& j& X2 Q* W6 F1 |. K% g1 y z end;
" H% e8 ]/ ?2 Y0 D3 b如果分支比较多，用：
; ^0 Q+ F/ E0 a2 g( f inspect <expression>
5 w& |6 N. A P( |, A when <constant_list> then
4 l' _& I1 ?, C( | <statement sequence1>;
) U1 ?$ T; l: V when <constant_list> then7 O# z$ T6 h4 {( f
<statement sequence2>;
2 q2 q6 ?! g5 g8 a c( O- e$ a ...
0 B# S, M& m! A) ]% T else
6 s* P" J* {& B! W4 m H <statement sequence3>; X! u1 g+ t4 j; D0 A; {" M
end;
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1 s( T7 E2 B1 p2 p2循环语句+ F4 D: R( s; j' {; A+ N* k
(1) from <statement sequence1>7 a8 B/ n9 G% p1 K" E: {2 t% G
until <condition> loop
V! b X( W. o <statement sequence2>;9 @6 y. J# O/ n( m
end;
- x- P0 T' f; f0 Q (2) while <condition> loop
' Z' K% l3 M9 B <statement sequence1>;
6 ]0 F' q! A& I$ M3 [ end;
; v0 P2 z7 u$ H* W j! E (3) repeat 7 M/ N* v$ R7 Z. y, v. G, ^
<statement sequence1>;+ a' }6 Z- t/ A( |9 z# y
until <condition>;; y! `; Y# J0 r- n4 f
(4) for <condition> to <condition> loop! A; C/ a! n3 n2 z0 S
<statement sequence1>;, ~* Q$ {7 v# @+ `; ]
next;# C& y) O) F8 p# L0 z4 p: T
3中断语句
2 v, X' c* I; Q$ T waituntil <condition> prio <integer expression>;
/ e7 M9 n, Y& k' M$ ]/ ~: h1 p- l; w5 y/ U6 d
# x7 T1 ], v A3 D g( A/ U
以上为常用的函数！
3 }) |9 c. n9 w* ?6 d4 T还有很多，如有需要我把资料发到你邮箱里 % M; G E8 L: L0 ]
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