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发表于 2016-11-14 18:11:56
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回复 1# ya574544187 ' Z+ I" e+ T, U' Y8 l. e) `
" W5 }0 \0 n* a! m
自己看吧,官方的说明:$ C- u# O) J# z* O9 u7 P: u
fsg1;) Z* ?& |9 e7 Q. P9 H: G7 G
returns: p" k4 g. L' d' n- J$ W! ]! ?
advanced math functions# J' z# Q- |% o
0 for values less then 0
1 r! o3 y3 R5 ^+ R: l5 c6 E1 for values greater then pr equal to 0& h3 |0 U5 b/ @" d0 ~! S7 a
0 _8 U1 g1 u' N* l t7 I' Rfsg2:: d2 |; n6 r2 V- r7 [* H; J
returns* A$ [! W2 h2 f! J, d2 A$ c2 g
advanced math functions
" }/ |$ @. C( B; [( O6 J ?0 for values equal to 0' x; h M( T6 W- L0 A3 C7 O
1 for values not to 0
" x9 M" }, d+ o+ ?! t" l) e) P; J6 [; G
fsg3:
# P6 c* `7 g# g" X6 M Areturns
3 X p6 U2 n3 b, u) D* Vadvanced math functions! D4 x- K6 `, @% {* n \$ J. f
0 for negative values
2 f9 S: ^4 t( |& m. _1 for zero 2 Q$ Q% \* ] w9 R' j2 W8 Y
2 for positive values |
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