文件数据筛选

```python
file_name = input("请输入要打开的文件")
file_1 = open(file_name,"r")
link = file_1.readlines()
print(link)
i = 0
list_1 = []
s = 0
o = 0
for j in link:
    k =  int(j[len(j) -3] + j[len(j) - 2])
    s += k


    if k > 60:
        # print((j[j.index(",")]))
        d = j.index(",")
        print("%s超过了60分"%(j[0:d]))
        if j[0:d][0] == "L":
            print("%s的名字是'L'开头的"%j[0:d])
print("总分是%s" % s)
```