auto save

demo.py

+'''
+1. 打印所有同学的英语成绩
+2. 找到皮皮的所有成绩
+
+3. 课后练习  查找地理成绩低于75分同学的名字
+'''
+
+import csv
+
+a = 0
+with open('report.csv','r',encoding='utf-8')as f:
+    f_csv = csv.reader(f)
+    listcsv = list(f_csv)
+    # print(listcsv[len(listcsv)-1])
+    for i in range(len(listcsv)):
+        # print(listcsv[i])
+        for j in range(len(listcsv[i])):
+            if listcsv[i][j] == '英语':
+                a = j
+        print(listcsv[i][a])
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read_csv.py

-"""读取csv文件""""
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+import csv
+
+with open('report.csv','r',encoding='utf-8')as f:
+    f_csv=csv.reader(f)
+    # print(f_csv)
+    csvlist = list(f_csv)
+    for j in csvlist[7]:
+        print(j)
+    print('*'*10)
+    for i in range(len(csvlist)):
+        print(csvlist[i][3])
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