如何剪出和贾斯汀·比伯一样的发型

{'smallUrl':'http:\/\/pad1.whstatic.com\/images\/thumb\/5\/5e\/Get-the-Justin-Bieber-Haircut-Step-1.jpg\/460px-Get-the-Justin-Bieber-Haircut-Step-1.jpg','bigUrl':'http:\/\/pad3.whstatic.com\/images\/thumb\/5\/5e\/Get-the-Justin-Bieber-Haircut-Step-1.jpg\/760px-Get-the-Justin-Bieber-Haircut-Step-1.jpg','smallWidth':460,'smallHeight':324.78021978022,'bigWidth':760,'bigHeight':536.59340659341}