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发表于 2012-11-13 08:48:12
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1判断语句
9 N. p5 F- f9 d: W' |+ i3 ] if <condition> then1 K( a$ U3 ]8 F( ?- Q
<statement sequence1>;- i: b7 j. W9 w. w
elseif <condition> then2 p. x! L/ n; j( \$ K
<statement sequence2>;9 s T2 N1 d; ^' D' ^
else + O5 I1 e) g1 Z- t) K: N
<statement sequence3>;' n4 l2 }) U4 U, T( j0 R8 R$ P
end;
* E" y8 d5 U! a$ t. D如果分支比较多，用：
( C" k ?5 i A' r: Q inspect <expression>
9 a/ g8 {" j; B: J when <constant_list> then
' T m7 B5 r% z" ~8 A8 J <statement sequence1>;6 p, K1 [' h7 f
when <constant_list> then" L4 l6 ]7 n* H1 b
<statement sequence2>;- C/ ^2 W& F- M7 a9 t
.... H8 m* m7 U5 Z+ ?* R
else1 B6 D% I1 K& C2 j, w: B/ V
<statement sequence3>;3 V; d; L. e9 s, v# ^% i
end;) E6 { |' y, j$ W2 m1 \, l; s7 ]
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2循环语句' n) V- H" t) p# w8 H5 _8 }
(1) from <statement sequence1>
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<statement sequence2>;3 t8 l. |" r. q" k) f0 p
end;
% h% W# m/ l- z) ~* H) d. f (2) while <condition> loop
- }9 C9 |( f9 ]0 _ <statement sequence1>;4 V& |. |8 w8 J: M' m; g D
end;7 I, G( O" z% `: V/ j& M1 u
(3) repeat
0 P1 B( N2 ?1 Z8 w+ i9 f <statement sequence1>;4 h) a% i+ {6 O, V7 a. |- L3 P
until <condition>;: K9 |, r/ y' x7 p% l
(4) for <condition> to <condition> loop" H; W" z- n- l* S( z1 a1 V
<statement sequence1>; `& K4 r8 V- K2 e$ r$ J9 W8 t
next;- x; R% p5 p; v% B
3中断语句% M1 z& z. a: X5 @% U8 W3 G
waituntil <condition> prio <integer expression>;* w/ {2 H6 O) M" Y! j
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以上为常用的函数！8 t& V0 s: p4 `6 \( O2 @# P5 _* r' \# I
还有很多，如有需要我把资料发到你邮箱里
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