[helphelp11]

Also, here's the code formatted if anyone is interested:

/setblock ~ ~1 ~ minecraft:standing_sign 0 replace {
    Text2: "{
        text:\"sunfan"\,
        color:red,
        bold:true
    }",
    Text3: "{
        text:\"cheescake"\,
        color:yellow,
        italic:true
    }"
}