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发表于 2012-11-13 08:48:12
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1判断语句2 Y% Z/ g3 ]! l) \6 R4 N7 d
if <condition> then
& Z8 Y. N+ y# x <statement sequence1>;( E7 `# O0 m# @9 e& D% M
elseif <condition> then
4 X1 {& A# t& d- P! q, y <statement sequence2>;- `* K! o0 w" ^
else , s% F3 C% s- ]* |5 c
<statement sequence3>;
" G" P8 Z" T2 |4 g- I# [! z/ g f end;$ W! R5 {, F0 Y7 b/ d1 K
如果分支比较多,用:0 i$ j( K9 ?, c$ M" H8 w' I
inspect <expression>
3 J r4 Q0 R4 f7 w when <constant_list> then, C+ u4 N/ L( E- ~3 k
<statement sequence1>;
' n' B9 w+ B) I4 M8 f when <constant_list> then0 D1 K, G! ]6 c
<statement sequence2>;
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else: e, ~! C' N3 y6 l
<statement sequence3>;( H1 P+ j) X: m4 P3 c% L; H5 o% ]
end;
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) _, Q* n9 ]2 @/ Q! [2循环语句
" M1 \7 r8 e3 v; ?3 S (1) from <statement sequence1>
( {8 Z& S3 ~7 w+ ~ until <condition> loop7 M; B4 c" h/ a8 J8 R$ W
<statement sequence2>;
i$ m0 c* s- h' y! Q end;
8 i4 c' r: ]4 I+ J S" n8 M (2) while <condition> loop" B% h6 r8 ? u# A' ?7 m+ Y5 ?
<statement sequence1>;
9 M- f+ M1 H. p9 ^* L/ Y end;
7 h0 [% n% x7 X5 E7 F, v9 K+ E (3) repeat 7 Z0 u$ o$ [8 B" Z
<statement sequence1>;
! S. b! Z3 }" c# d2 z6 \ until <condition>;
) }' ]4 `& M4 N7 X S (4) for <condition> to <condition> loop
! i6 ?) X0 E5 B, J9 T <statement sequence1>;3 ^5 J" m/ V) P8 F1 I
next;
Z8 W) M( X. V8 m) \* }7 S3中断语句1 {1 e2 x s; ~6 M
waituntil <condition> prio <integer expression>;) O3 ?" D7 Z _
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3 V0 a( w K9 D z$ x* W以上为常用的函数!) Q% p( K3 o& `- q. a& H6 e! t
还有很多,如有需要我把资料发到你邮箱里 # @# G1 F* L* R7 y4 B8 O
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