表达式4: polygon left parenthesis, left parenthesis, 0 , 0 , right parenthesis , left parenthesis, 0 , 3 , right parenthesis , left parenthesis, "b" , 3 , right parenthesis , left parenthesis, "b" , 0 , right parenthesis , right parenthesispolygon0,0,0,3,b,3,b,0
4
表达式5: "x" equals left bracket, 1... "a" minus 1 , right bracket left brace, 0 less than "y" less than 3 , right bracex=1...a−10<y<3
5
隐藏 标签 left parenthesis, "a" , 1 , right parenthesisa,1
标签
equals=
left parenthesis, 8 , 1 , right parenthesis8,1
6
隐藏 标签 left parenthesis, "b" , 2 , right parenthesisb,2
