待生成的CSV成绩文件内容如下： 王鑫,86,90,92,99,94,95 杨小虹,93,97,95,90,86,85 李静,89,98,99,94,90,85

对应实现代码如下：

a=[['王鑫','86','90','92','99','94','95'],['杨小虹','93','97','95','90','86','85'],['李静','89','98','99','94','90','85']]
f=open('成绩.CSV','w')
for i in a:
    f.write(','.join(i)+__)
f.close()