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发表于 2012-11-13 08:48:12
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1判断语句3 b( m. Z V- v- q2 f+ c
if <condition> then8 K6 B+ H% b: U8 s6 Z
<statement sequence1>;
& g" c- s( I4 l/ D elseif <condition> then
: q8 l, c2 G$ C) T <statement sequence2>;! ]+ ^, O% O1 q1 d7 \" }
else / Z# ?2 {! S* f, G3 q- I0 }
<statement sequence3>;
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如果分支比较多，用：
" w: Z2 Q& g: [# Q inspect <expression>
; Q o L2 I! j3 e4 H% C% \ when <constant_list> then
m2 f/ O$ ]2 C! ]6 g <statement sequence1>;0 i% E6 h4 I/ ]( Q+ _
when <constant_list> then G1 `! [( Z2 p- [% Z$ p6 p2 d
<statement sequence2>;, \- |6 S% v) e+ v I. ^6 A" `7 S5 m
...
/ r# P# v n: S9 h# y: s* t0 F else
3 V$ r3 n y; D, c' ~& |$ \ <statement sequence3>;
# S" i/ j& N/ V" mend;
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0 l% G* s6 C4 y% w2循环语句
4 E M4 D4 m, i (1) from <statement sequence1>8 g- S5 t; ^% p
until <condition> loop9 i O b- J8 b: {; `
<statement sequence2>;& i+ T; Y8 D* n# U+ q% [
end;
( o/ N3 b6 z4 j: S m' Y3 @ r (2) while <condition> loop/ b( z8 D: Z8 w
<statement sequence1>;; b) Y" F3 F. W1 a) e: ~
end;$ p& B3 @; G# l0 N& L2 f J3 f( R
(3) repeat 5 |2 \, w$ [; {9 r& @
<statement sequence1>;
6 p) n; D$ r3 y/ t7 e. ` until <condition>;( T" T0 t; b% M0 D, _
(4) for <condition> to <condition> loop6 p& d3 q4 B% I( i
<statement sequence1>;1 @1 F1 C( U4 Z T6 `) z0 l/ [4 H
next;
. Z* P$ b2 L' O" }- U* r6 v3 c/ `3中断语句8 n8 m8 S/ X3 ]8 H" V+ L
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
; p- ^5 {2 c+ @0 e还有很多，如有需要我把资料发到你邮箱里
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