save project

x.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'
+new_dat=''
+# with open(r'C:\Users\admin\Desktop\gyytyty.txt','w',encoding='utf-8') as p:
+#     p.write('小明:25本\n')
+#     p.write('小强:10本\n')
+with open(r'C:\Users\admin\Desktop\gyytyty.txt','r',encoding='utf-8') as f:
+    for dat in f:
+        if "小强:10本\n" in dat:
+            print("在这里")
+            dat=dat.replace("小强:10本\n","小强:11本\n")
+        new_dat=new_dat+dat
+with open(r'C:\Users\admin\Desktop\gyytyty.txt','w',encoding='utf-8') as f:
+    f.write(new_dat)
\ No newline at end of file