auto save

5.py

+f =open('test1.py','w',encoding='utf-8')
+f.write('# @time:2022/1/28 15:57\n# @Author:  LA\n''key_list = []\nvalue_list =[]')
+f.close()
+
+f = open('test1.py','r',encoding='utf-8')
+ls = f.reaslines()
+f,close()
+f = open('test1.py', encoding='utf-8')
+j = len(ls)
+for i in range(j):
+    line = f.readline()
+    if line[0] =='#':
+        print(f'以#号 开头行行数:{i+1}')
+    else:
+        print(line,end='')
+f.close()
+
+
+
+
+f = open('test1.py',encoding='utf-8')
+ls = f.reaslines()
+for index,line in enumerate(ls):
+    if line.startswith('#'):
+            print(f'以#号 开头行行数:{index+1}')
+    else:
+        print(line,end='')
+f.close()

test1.py

+# @time:2022/1/28 15:57
+# @Author:  LA
+key_list = []
+value_list =[]
\ No newline at end of file