save project

diy.py

+# 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
+# file1 = open(r'C:\Users\Public\Desktop\test.txt','w',encoding = 'utf-8')
+# file1.write('l:12\n')
+# file1.write('li:11\n')
+# file1.write('w:9\n')
+# file1.write('z:16\n')
+# with open(r'C:\Users\Public\Desktop\test.txt','a',encoding = 'utf-8')as file:
+#     file.write('z:11\n')
+# with open(r'C:\Users\Public\Desktop\test.txt','r',encoding = 'utf-8')as file:
+#     for i in file:
+#         if'l:12'in i:
+#             print('找到了')
+new_data = ''
+with open(r'C:\Users\Public\Desktop\test.txt','r',encoding = 'utf-8')as file:
+    for i in file:
+        if'l:12'in i:
+            data=i.replace('l:12','l:13')
+        if'li:11'in i:
+            data=i.replace('li:11','li:12')
+        new_data += data
+with open(r'C:\Users\Public\Desktop\test.txt','w',encoding = 'utf-8')as file:
+    file.write(new_data)
+with open(r'C:\Users\Public\Desktop\test.txt','r',encoding = 'utf-8')as file:
+    a = file.read()
+    print(a)    
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