import numpy as np import pandas as pd a1=[] for q in range(10): ar1=[q,q+1,q+2,q+3] a1.append(ar1) n1=np.array(a1) df1 = pd.DataFrame(n1,index=range(10), columns=["t1","t2","t3","t4"]) #添加数据 df1.loc[10]=[10,11,12,13] print(df1) #删除指定行 df1.drop(labels=2,inplace=True) print(df1) #改一个元素 df1.loc[9,"t1"]=2 print(df1) #改一行 df1.loc[9]=[1,2,3,4] print(df1) #写入json df1.to_json("data/1.json",orient="index") #读取 df2=pd.read_json("data/1.json",orient="index") print(df2)