LR 如何获取服务端返回的字符串,返回值如下:
{"access_token":"j8hcIILJu07h-oUFOFJ6WwoV30b_iZ4M6UP2G3aubSo19L2VR3-QrUAAB4kXek0NlA_zNC9_DUm1OLxEl3WNXsT7rPVXWOOgqFJXVMfGYIOM8J0r9lXICe3IbBHYz6gkp1PyCocaDw9aUcpeBBTMJISeFyKGmk6gXOnwSeYxNjoj9RyP7LfUV8Jzuk6TLlxXBGIK5XrRrermDPqOGzzLqsOCc46Elfy_d5g9zfNmAlQ_8Z8ingqJw6jLvV6G0nzWy3wq1XXDhOZM9GGglEmInf6N19jNVMQ26WFIuw7vc06g33OmoSC2e3RwBgSN","token_type":"bearer"}
怎么把access_token的值保存为参数?