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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
" g/ l& a( F) L: i8 R if <condition> then* _8 m, ~9 P4 ^5 d; ^
<statement sequence1>;1 ^7 A0 @. D# r( l P
elseif <condition> then: {$ o# x3 O; Z+ g3 g7 w2 `7 ?
<statement sequence2>;% f" c7 @* _- W! U
else
3 W; }7 G H2 H! w- v <statement sequence3>;
! M" A0 ^# `" N end;
$ i( a- z/ ` a; n9 \$ K如果分支比较多，用：
/ G% x0 p ]) w inspect <expression>
+ Z& `! t# v/ z( ]( X* g when <constant_list> then
2 g) I" `2 z r+ T <statement sequence1>;
: [, d8 F5 Y0 H. C9 a' P/ j when <constant_list> then
8 k0 i( O7 y: o. B# K2 J z% U <statement sequence2>;( f8 k+ l& x2 t9 ~( d. i/ n+ `$ @( W
...
' @5 o% A& N% ~! u0 _1 q* Y else: q9 \! n. z3 O- R6 l; K
<statement sequence3>;1 Y/ @: e6 e$ x9 W1 _7 n' b
end;: G# m5 r5 x6 [5 o9 T9 @- v
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2循环语句
. \/ L1 Y8 C( C# a( c (1) from <statement sequence1># H% T0 z+ C/ C/ A0 _8 U0 Y: a
until <condition> loop2 V E$ W0 u0 K
<statement sequence2>;
, T3 m0 p, \. N" e( k: \) \ end;1 g6 Z# N: I; s y& O
(2) while <condition> loop5 [' A1 N! l i, k6 U2 ~9 y; E: x8 ?
<statement sequence1>;
$ T6 ^( v4 Q/ z+ b1 g5 T: s+ H end;$ ?: ?, q5 f6 w7 o) D1 ^
(3) repeat
% {2 C: N/ }* \; u' ~ <statement sequence1>;0 c+ O; l) u$ V# `. H* Y, f
until <condition>;7 K3 g. z0 z. q0 M6 X& ]& p6 X
(4) for <condition> to <condition> loop4 s; {1 Z- @+ @: y5 m
<statement sequence1>;, s' j7 E9 }* T. ]8 p, d
next;% v/ c& e& l6 _- X7 h
3中断语句% C3 r1 @2 x; S4 b% V! F* k: S
waituntil <condition> prio <integer expression>;8 h' A0 C1 S. N- j4 W
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1 Y! }8 E( f6 w以上为常用的函数！
" h8 b# b, ~* O* B9 p: J2 F还有很多，如有需要我把资料发到你邮箱里 & a7 D1 r+ s0 |3 A
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