PR如何新建序列

[[{"txt": "PR\u5982\u4f55\u65b0\u5efa\u5e8f\u5217\uff1f\u8bf7\u770b\u4e0b\u9762\u65b9\u6cd5\u3002"}], [{"txt": ["\u5de5\u5177/\u539f\u6599"]}, {"txt": "PR"}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa4"]}, {"txt": "\u6253\u5f00PR\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/ba97ffd06de89a619b248d2045e8b004541bad54.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u70b9\u51fb\u65b0\u5efa\u9879\u76ee\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/9b2098254193cee8900598a85a0ff2260d9aa854.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u70b9\u51fb\u786e\u5b9a\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/b1454a1bd10ff226299bfdbd9c99e92abab8a454.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u70b9\u51fb\u6587\u4ef6\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/304f0999e92abab86b41a64d4814f1c595eea154.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u9009\u62e9\u65b0\u5efa\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/430174fec314f1c5b8ef8d723c27ac5306889d54.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u9009\u62e9\u5e8f\u5217\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/94af5fc1b727ac5337895d9f2ecadce890489954.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u8bbe\u7f6e\u597d\u53c2\u6570\uff0c\u70b9\u51fb\u786e\u5b9a\u5373\u53ef\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/dda98e4800fc77f7a00f9393c8715fdb36209054.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u5982\u56fe\u6240\u793a\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/5e9a2820b93acd891fc4eabc0335dd8a59de8b54.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}]]