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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
8 T+ R0 {% e$ X. G# W& X; \/ ` if <condition> then4 l8 \- \; ]( Z6 u
<statement sequence1>;% ]/ z0 B5 e3 ~; ]$ V* E" t# \
elseif <condition> then4 C9 [7 w4 a1 h6 O
<statement sequence2>;8 _! l8 m3 c6 _* t, J2 G% L+ R
else ) L! H3 U! A, ]# f( a
<statement sequence3>;
0 E* c" A5 Q% I) T+ _ end;
+ J) A+ U- n, ^ W% C8 G如果分支比较多，用：, q8 c! D p* O
inspect <expression>6 t% J+ X6 I0 b9 Q
when <constant_list> then( v! c3 |2 u, ^( a! J
<statement sequence1>;1 ?5 j0 b. M1 }$ e& M; G& Y
when <constant_list> then" f6 d- L2 x( s
<statement sequence2>;, @( c- E9 b8 Q7 _1 i
...
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<statement sequence3>;4 H+ Y5 B5 q0 j' l- j; K# O
end;
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2循环语句
5 p ~7 x \* u (1) from <statement sequence1>
7 X0 h+ ~4 \% N6 c+ H until <condition> loop g; |( I; e5 m _
<statement sequence2>;9 O& ?2 p. O: ? h5 l
end;! P9 i3 j: e' P) ~, I
(2) while <condition> loop
& B a D8 ^6 V3 H3 U- f <statement sequence1>;: y f3 C- c: x9 l
end;) _. m0 W! @2 ~% m1 k, x
(3) repeat
|& ]3 c& T- T8 M' w2 i; T' h <statement sequence1>;" F+ f+ s2 W( g Y% k! R
until <condition>;
* E3 {/ J8 @2 ^4 A! } (4) for <condition> to <condition> loop1 q- A, U9 n: G- V3 b; |( j
<statement sequence1>;3 i9 ?" S4 U G2 C/ a# v
next;
! G& G! ]' _ m4 J3中断语句# b+ A7 |+ d/ v; A
waituntil <condition> prio <integer expression>;
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以上为常用的函数！) |- |1 v; }0 n/ w- Y; b& @
还有很多，如有需要我把资料发到你邮箱里 ' M- ?. p3 g$ f9 `
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