方法一:
function coloring ( ) { let r = Math. floor ( Math. random ( ) * 255 ) let g = Math. floor ( Math. random ( ) * 255 ) let b = Math. floor ( Math. random ( ) * 255 ) return ` rgb( ${ r} , ${ g} , ${ b} ) `
}
document. body. style. background = coloring ( )
方法二:
function coloring ( ) { return '#' + ( Math. floor ( Math. random ( ) * 0xffffff ) . toString ( 16 ) . padStart ( 6 , '0' ) )
}
document. body. style. background = coloring ( )
方法三:
function coloring ( ) { return new Array ( 4 ) . fill ( '#' ) . reduce ( ( prev, cur ) => { return prev + Math. floor ( Math. random ( ) * 256 ) . toString ( 16 ) . padStart ( 2 , '0' ) } )
}
document. body. style. background = coloring ( )
方法四:
function coloring ( ) { return new Array ( 7 ) . fill ( '#' ) . reduce ( ( prev, cur ) => { return prev + Math. floor ( Math. random ( ) * 16 ) . toString ( 16 ) } )
}
document. body. style. background = coloring ( )
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