1 Read before write (python27)
#!/usr/bin/python import json with open("replayScript.json", "r",encoding='utf-8') as jsonFile: data = json.load(jsonFile) tmp = data["location"] data["location"] = "NewPath" with open("replayScript.json", "w") as jsonFile: json.dump(data, jsonFile,ensure_ascii=False)
2 Read and write move the file location pointer together (python27)
with open("replayScript.json", "r+",encoding='utf-8') as jsonFile: data = json.load(jsonFile) tmp = data["location"] data["location"] = "NewPath" jsonFile.seek(0) # rewind json.dump(data, jsonFile,ensure_ascii=False) jsonFile.truncate()
3 Array type read and write
Remove the last element of jsonarray
#!/usr/bin/python import json with open("./config/patchconfig/patch_log.json", 'r+',encoding='utf-8') as f: log = json.load(f) log.pop(len(log) - 1) f.seek(0) json.dump(log, f,ensure_ascii=False) f.truncate()