x：1.2= 3/4:D:`'X:S.I,I6L
算式：提示'V(E'h:P+H2c-N3Q/M:D:`'X:S.I,I6L
x=4y0p-W:g.O,K4|7x7u,L+Q*|3a8?8h2Y.|;I1B2[1s:D:`'X:S.I,I6L