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发表于 2016-11-14 18:11:56
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回复 1# ya574544187
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自己看吧,官方的说明:
4 z9 p3 w$ L- N1 tfsg1;" P8 n4 ^- A) ?# L
returns% {; A" {/ n" M: @, @6 c: S( }) k
advanced math functions
. d; v" B: f6 w$ K3 ]" M1 O4 ] I- c2 ?& A0 for values less then 0/ Z- A# b! @+ w+ o5 ~! o& ~. T* i
1 for values greater then pr equal to 0
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returns
{' |8 P1 V, {! hadvanced math functions. g& a9 U, m" V: k5 M4 s
0 for values equal to 0. d' A3 e/ C% k% ^9 I
1 for values not to 0/ z) u, D8 J" j6 d0 R
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fsg3:* m: V; Y. A& P2 P# Q
returns( d/ O6 y/ S) t( t: [) f5 F4 t
advanced math functions
2 a& J1 y1 F' P% \0 for negative values8 ^7 w( H1 X' V8 \# K1 R9 o: N* h
1 for zero : J0 K1 [, H+ y0 j
2 for positive values |
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