- Series与标量运算，标量会与每个元素进行计算
- Series与Series运算,会根据标签索引进行对位计算，索引没有匹配上的会用NaN填充。
- 索引没有匹配上的会用NaN填充
importpandasaspdimportnumpyasnpimportmatplotlib.pyplotasplt# Series与标量运算，标量会与每个元素进行计算。s1=pd.Series({"a":-1.2,"b":3.5,"c":6.8,"d":2.9})print("按照索引坑位每个数字乘以10:\n",s1*10)#Series与Series运算,会根据标签索引进行对位计算，索引没有匹配上的会用NaN填充。s2=pd.Series({"a":1.1,"b":2.2,"c":3.3,"d":4.4})print(s1+s2)###s3=pd.Series({"a":1.1,"b":2.2,"c":3.3,"d":4.4},index=["a","b","c","x"])print("s3----索引没有匹配上的会用NaN填充:\n",s3)print(s1+s3)print()s4=pd.Series([1,1,1,1])#0 1 2 3s5=pd.Series([2,2,2,2],index=[1,2,3,4])#1 2 3 4print(s4+s5)
