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发表于 2012-11-13 08:48:12
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1判断语句
- r# x1 V6 r- [( y9 d4 i' a if <condition> then
7 ^ _' @6 h W3 U <statement sequence1>;
/ W& a* k# P8 [. o elseif <condition> then
* m# M$ m7 d( H4 g7 H1 [ <statement sequence2>;
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<statement sequence3>;. H9 ?5 x" M0 L
end;
- U4 I4 |# P6 \" s如果分支比较多，用：- H3 ]) a Q5 B4 y9 P3 M* i! Y
inspect <expression> L: D2 G2 a6 d/ V1 F
when <constant_list> then O) _6 v$ b1 _3 X5 e3 `/ j+ z! E
<statement sequence1>;6 Y A: g, P- @
when <constant_list> then$ P5 n3 v+ ~( O4 B- a" ?, ]
<statement sequence2>;0 h' G- ]) |2 `: R2 T
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else
& q4 @& N( u* R7 V& f: |( l <statement sequence3>;2 F. C$ j4 v" M) x
end;
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* Z9 w8 }' Z2 J/ r2 p& P, [2循环语句
. R' y2 | `- @* D5 |1 f (1) from <statement sequence1>
) o" T* Y; C' s until <condition> loop
& Y; l, g6 N# E8 A7 v, R |# g <statement sequence2>;1 D$ f+ v3 M0 M
end;
: J' O4 W; @; }" L1 i+ `% ^9 l (2) while <condition> loop& p; }6 L) N4 |# U F% [
<statement sequence1>;+ w6 \" h5 Z$ k5 d$ I; f B
end;, M$ \6 o$ T c: o8 Y% m( h; [
(3) repeat 5 i% p$ }: {5 P# d+ V% L" U/ J
<statement sequence1>;
9 d5 @0 W- S9 e* ] until <condition>;$ \" }. q* a: W5 j
(4) for <condition> to <condition> loop$ C2 V! }0 I/ F
<statement sequence1>;! s+ l! p3 k$ b- F( V
next;
/ J8 \# N! a* w& z# S; M s8 [3中断语句
/ e; \7 p. |$ G+ G' ?. B$ q& I waituntil <condition> prio <integer expression>;
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以上为常用的函数！+ b2 _' k2 j6 A- J0 P; O
还有很多，如有需要我把资料发到你邮箱里 # p1 Y! D c2 c8 N' s
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