PS怎么将图片内存变小

[[{"txt": "PS\u600e\u4e48\u5c06\u56fe\u7247\u5185\u5b58\u53d8\u5c0f\uff0c\u6211\u4eec\u7528\u7535\u8111\u7684\u8bbe\u7f6e\u56fe\u50cf\uff0c\u6587\u4ef6\u5185\u5b58\u5927\u662f\u4e00\u4e2a\u539f\u56e0\uff0c\u5185\u5b58\u5927\u5c31\u5bfc\u81f4\u6211\u4eec\u7684\u7535\u8111\u5185\u5b58\u4e0d\u591f\uff0c\u600e\u4e48\u628a\u56fe\u7247\u5185\u5b58\u53d8\u5c0f\u5462\uff0c\u5927\u5bb6\u770b\u6211\u64cd\u4f5c"}], [{"txt": ["\u5de5\u5177/\u539f\u6599"]}, {"txt": "PS"}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa4"]}, {"txt": "\u9996\u5148\u6211\u4eec\u627e\u5230\u6211\u4eec\u684c\u9762\u7684ps\uff0c\u60a8\u7535\u8111\u8981\u662f\u6ca1\u6709\u60c5\u51b5\uff0c\u6211\u4eec\u53ef\u4ee5\u53bb\u7f51\u4e0a\u4e0b\u8f7d\u4e00\u4e2a"}, {"img": ["https://exp-picture.cdn.bcebos.com/c8373cbc7dc5cf67994269f28e96b814f5d026b6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6211\u4eec\u70b9\u51fb\u6587\u4ef6\u6253\u5f00\u7684\u547d\u4ee4"}, {"img": ["https://exp-picture.cdn.bcebos.com/7c84d1672b5fd546b18b04a07fd0b503c9d224b6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6211\u4eec\u968f\u4fbf\u6253\u5f00\u4e00\u4e2a\u6587\u4ef6\uff0c\u4e00\u4e2a\u6f02\u4eae\u7684\u7d20\u6750\u6587\u4ef6"}, {"img": ["https://exp-picture.cdn.bcebos.com/2a1ecb460596b81442cd09b743d246fe464e22b6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6211\u4eec\u770b\u4e00\u4e0b\u4ed6\u7684\u6587\u4ef6\u5927\u5c0f\u572890kb\u5de6\u53f3"}, {"img": ["https://exp-picture.cdn.bcebos.com/b955ead0b503c8d2ffe3fbfa498333bf3aef21b6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6211\u4eec\u70b9\u51fb\u6587\u4ef6-----\u5b58\u50a8\u4e3aWeb\u548c\u8bbe\u5907\u6240\u7528\u683c\u5f0f"}, {"img": ["https://exp-picture.cdn.bcebos.com/460fdc8333bf3bef8b52ec0c3f3ea8db564a1ab6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6211\u4eec\u7a0d\u5fae\u628a\u4ed6\u7684\u54c1\u8d28\u62c9\u4f4e\u4e00\u4e0b\uff0c\u4f46\u662f\u4e0d\u8981\u7834\u574f\u56fe\u7247\u7684\u8d28\u91cf"}, {"img": ["https://exp-picture.cdn.bcebos.com/51f9aa3ea8db574a392f2f28a7f7dfb2dd1917b6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6211\u4eec\u53ef\u4ee5\u5728\u5de6\u4e0b\u89d2\u770b\u6211\u4eec\u4fee\u6539\u4e4b\u540e\u7684\u5185\u5b58\u5927\u5c0f"}, {"img": ["https://exp-picture.cdn.bcebos.com/fb738d9c2cf7dfb21b047298d01b1edef5dc13b6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u6700\u540e\u50a8\u5b58\u4e00\u4e0b\u5c31\u884c\u4e86\uff0c\u975e\u5e38\u7b80\u5355\u628a"}, {"img": ["https://exp-picture.cdn.bcebos.com/1f9feadca039131f00f16f6de275f2c4ed990ab6.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}]]