Python使用matplotlib模块绘制多条折线图、散点图

用matplotlib模块

#!usr/bin/env python
#encoding:utf-8
 
'''
__Author__:沂水寒城
功能：折线图、散点图测试
'''
 
import random
import matplotlib  
import matplotlib.pyplot as plt  
 
 
def list2mat(data_list,w):
    '''
    切片、转置
    '''
    mat=[]
    res=[]
    for i in range(0,len(data_list)-w+1,w):
        mat.append(data_list[i:i+w])
    for i in range(len(mat[0])):
        one_list=[]
        for j in range(len(mat)):
            one_list.append(mat[j][i])
        res.append(one_list)
    return res
 
 
 
def draw_pic_test():
    '''
    作图
    '''
    data_list=[]
    for i in range(100):
        data_list.append(random.randint(2,150))
    month_list=range(1,11,1)
    mat=list2mat(data_list,w=10)
    for one_list in mat:
        one_list=[int(one) for one in one_list]
        plt.plot(month_list,one_list,"x-",label="test_zhexian")  
    plt.savefig('test_zhexian.png')
    plt.close()
    for one_list in mat:
        one_list=[int(one) for one in one_list]
        plt.scatter(month_list,one_list,marker='x',label='test_sandian',s=30) 
    plt.savefig('test_sandian.png')
    plt.close()
 
 
 
if __name__ == '__main__':
    draw_pic_test()

结果

折线图

散点图