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发表于 2012-11-13 08:48:12
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1判断语句
' R; q0 _6 a3 f! n& q# t& X) _ if <condition> then
: Y; ^, n1 L1 ~' t6 f, @ <statement sequence1>;, o) e$ C7 L4 v8 B
elseif <condition> then# b6 w' m# m, B. ]
<statement sequence2>;8 k+ [' M( C; n- b a( j* F4 a
else . \5 f ]) j8 r
<statement sequence3>;
4 g2 k9 R" i* Y1 h* _ end;
) K( c% Q, }/ ^' n9 Z! C如果分支比较多，用：: }5 V, u, }( A9 u4 \* w
inspect <expression>' S2 d- G2 R* e9 Q7 {9 A
when <constant_list> then7 X; F* e) J# u3 v- }, m
<statement sequence1>;
3 n$ e ~& l# j1 H3 O7 M, i6 G when <constant_list> then( H( a9 V$ S: O+ f1 b! x3 b
<statement sequence2>;" [1 H8 P( V6 P0 W$ F" h
...
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<statement sequence3>;
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2循环语句
6 e; a2 ^3 R' ~( i (1) from <statement sequence1>* y4 U9 b( V: k: {
until <condition> loop
1 |, O: s8 [, V3 r, C! q <statement sequence2>;
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(2) while <condition> loop" ~5 b) w9 X4 C. I
<statement sequence1>;
: H$ n6 H1 C$ H4 P: ~5 y- Y) f6 k end;
- O$ P% @/ Z; K% J (3) repeat . z, w4 \; O, s1 b2 K6 j
<statement sequence1>;/ F5 j* A. d0 o- o, ?& q O, b
until <condition>;
U" a( C" @8 o% I5 M (4) for <condition> to <condition> loop
p. s; G) D* A6 [ <statement sequence1>;0 W8 }2 ^; B5 C" B9 ^9 n7 `% M2 V
next;
; Y$ i& X' m# E3中断语句3 h6 F4 A( q9 }, A9 v2 @& N
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
6 j( b+ M1 [3 Y, `还有很多，如有需要我把资料发到你邮箱里 + b' A# J5 ~& ?- [+ u0 c- ?6 u
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