python基础语法易错点

太过爱你忘了你带给我的痛 2022-11-21 01:23 205阅读 0赞

# 使用split函数的时候注意将list转为str #

file1 = open(r'C:\Users\wengjiaqi\Desktop\test1.txt','r',encoding='utf-8')
    filecontent = file1.readlines()
    data=','.join(filecontent)
    data1=data.split("#")
    for j in data1:
            print(j)
    
    a=['c','a','t']
    b=''
    print(b.join(a))
    c='-'
    print(c.join(a))

![在这里插入图片描述][20201029161337203.png_pic_center]

![在这里插入图片描述][20201029161317114.png_pic_center]  
![在这里插入图片描述][20201029161351781.png_pic_center]

# Python中读写文件 #

file1 = open(r’C:\\Users\\wengjiaqi\\Desktop\\test1.txt’,‘r’,encoding=‘GBK’)  
filecontent = file1.readlines()  
file1.close()  
listvar = \[\]  
for i in filecontent:  
data = i.strip().split(’,’)  
sum = 0  
for score in data\[1:\]:  
sum = sum + int(score)  
result=data\[0\]+str(sum)  
print(result)

writer = open(r’C:\\Users\\wengjiaqi\\Desktop\\test1.txt’,‘a’,encoding=‘GBK’)  
writer.write(’\\n’)  
writer.writelines(listvar)  
writer.close()

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTUxMTIzNg_size_16_color_FFFFFF_t_70_pic_center]

[20201029161337203.png_pic_center]: /images/20221120/d3cd562c8ee84dd5ae7dbfd18aeb7c32.png
[20201029161317114.png_pic_center]: /images/20221120/5f376c528e7142878160b69d46216ff7.png
[20201029161351781.png_pic_center]: https://img-blog.csdnimg.cn/20201029161351781.png#pic_center
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTUxMTIzNg_size_16_color_FFFFFF_t_70_pic_center]: https://img-blog.csdnimg.cn/20201029200600727.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTUxMTIzNg==,size_16,color_FFFFFF,t_70#pic_center