[{"title":"( 4 个子文件 6.14MB ) usb封装史上最全,花重金购买的","children":[{"title":"usb封装","children":[{"title":"USB封装库.zip <span style='color:#111;'> 5.20MB </span>","children":null,"spread":false},{"title":"USB3.0A.PcbLib <span style='color:#111;'> 35.50KB </span>","children":null,"spread":false},{"title":"usb 最全封装库(含macro usb,直立macro5p)for altium.zip <span style='color:#111;'> 546.29KB </span>","children":null,"spread":false},{"title":"USB3.0公头贴片封装.zip <span style='color:#111;'> 427.16KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]