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发表于 2012-11-13 08:48:12
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1判断语句
, z1 J( T) _# I/ |( T- h% T if <condition> then
. u& |9 X7 t9 C }' {% ^: {; S <statement sequence1>;
4 f. \- Q6 X! P: C6 U elseif <condition> then! v% S0 `1 u# b5 g. P
<statement sequence2>;
0 a! T* V- o7 `) i8 B* f else 4 `- d% E8 ~2 u
<statement sequence3>;8 [/ [' E& I7 ^7 @1 g% E
end;: S# m/ E/ k2 s
如果分支比较多，用：
" I; ]: K2 p9 y4 @1 ?$ ] inspect <expression>. v( S: }0 w# e: |% K+ I
when <constant_list> then8 M! p+ e" Y1 U: }
<statement sequence1>;! c& m) d5 W N
when <constant_list> then
0 C, R6 [' o6 ] <statement sequence2>;
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else
- c2 n; R) r* g) y <statement sequence3>;
: c" `% Y! e' a5 A2 u; dend;
+ g. a1 x6 C% |+ A0 q- z4 y/ g* X+ B. c: U7 _% ?3 V
2循环语句
: [2 Q9 E/ B& t; J (1) from <statement sequence1>. \, }2 S1 d# l$ w/ R+ F1 P
until <condition> loop9 s# o0 d j3 b
<statement sequence2>;
- p( C) [) [+ |% d, z) Q) m end;
0 ]! P0 P) b$ ^' d0 i& L7 p (2) while <condition> loop1 {8 s7 A- [+ `
<statement sequence1>;
# Q# R# K# Y- n. x! |( R+ H end;
4 l) m, x# D: k, S$ V! g (3) repeat
, \8 |5 E9 _* U9 ^ <statement sequence1>;
7 R' `# [6 O3 F+ [' x! t7 ?& b0 S until <condition>;
* O. U/ ^4 h% t (4) for <condition> to <condition> loop: `" m& z4 f9 @ t% M& T
<statement sequence1>;3 P9 _* k$ O2 p/ Y+ y& A/ J9 ^" A
next;: X4 B/ I/ n& I; w+ ^/ `
3中断语句
/ _$ U- g4 G0 _6 ^7 D2 ?, f waituntil <condition> prio <integer expression>;
% s. i" Q9 R0 Y# f
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1 E0 T# @6 o9 H9 @9 [5 n以上为常用的函数！6 b/ j! ^& x* c" [; l; `9 r+ E& ~ C5 c
还有很多，如有需要我把资料发到你邮箱里
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