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发表于 2012-11-13 08:48:12
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1判断语句
: k( m, Q2 c- i' s if <condition> then
% b9 S" H3 n1 T+ X7 W <statement sequence1>;( V- Q* N9 f9 o. g+ a. h- F0 J
elseif <condition> then
, K; @" ^2 U8 M4 |4 q* _% \3 g" ` <statement sequence2>;
6 L, ~# ?- [% F, E! [& } else
- k! K9 i8 h" R2 ` <statement sequence3>;
; W0 N0 P$ |4 B. n, I0 ?' Q" D; S end;% E8 k9 o3 a0 o
如果分支比较多，用：% y2 J. p/ b* t1 l/ {7 O
inspect <expression>
# X' D$ H: t. P" d) z( }' r, V. x* Z when <constant_list> then
) Z0 r5 q$ q! e" x1 e/ n+ [ <statement sequence1>;
2 Y1 f! S' Z, {: e2 u/ S6 Z# } when <constant_list> then3 j# j2 [: {5 z" C2 N
<statement sequence2>;
j& J' {0 r/ }$ K P6 E( T2 h ...
6 h5 t( T3 |7 g% @0 M0 U# u# `) g0 o else
) Z$ ^( g0 y( L& F <statement sequence3>;
( |" x& ^' d; Mend;
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9 C/ u" x2 p, q. }& o, _2循环语句
' Y& M C B8 ^$ h (1) from <statement sequence1>1 c5 }: j, L0 M- b4 g& I/ P. |
until <condition> loop
( g& B* m) T5 Z( N, S; r1 ^ <statement sequence2>;/ n$ n6 t. n) V( |, b$ X3 A2 ^0 Z
end;" F4 B, ]% h1 I) t0 b. u7 T& ]' c+ a
(2) while <condition> loop$ u' w+ t. `0 J
<statement sequence1>;
' ?0 L! a, ]4 T: `, Q end;2 a7 }0 L* _$ l
(3) repeat
" e% M2 V3 V" D3 Q6 L' Q; V4 s' n <statement sequence1>;
9 ^( a9 L/ a: \. n# `& `" a o until <condition>;
1 |# R; K! C/ I (4) for <condition> to <condition> loop7 G3 n/ e7 H$ I3 b4 L
<statement sequence1>;
, L+ \, V, O, e next;
4 K: \# h4 ~; A. r a U3中断语句
+ |& Y L1 p' H waituntil <condition> prio <integer expression>;5 j0 n' ?7 p4 Q4 Q
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% e& T2 V. B9 Z7 C2 B
以上为常用的函数！
. D( H- Q+ Q: D9 b) j) c还有很多，如有需要我把资料发到你邮箱里 ' ~( P, j+ w$ ^- l# k1 ?
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