丰富database_tools

工具v2/database_tools.py

@@ -491,5 +491,17 @@ def parseUsage(usagestring): #对单行usage信息进行分词
     usagedict["glossdiff"] = round(sum(usagedict["difficulties"])/usagedict["subproblems"],3)
     return usagedict #返回词典, 含date日期, classid班级标识, subproblems小题数目, difficulties得分率, glossdiff小题平均得分率
 
+def StringSubstibute(regex,template,stringtuple): # 用stringtuple里的字符串逐个替换template中的符合某种regex规则的字符串
+    toSub = re.findall(regex,template)
+    if not len(toSub) == len(stringtuple):
+        print("长度不符.")
+        return 1 #若长度不符则显示“长度不符”并返回1
+    else:
+        output = template
+        for i in range(len(toSub)):
+            output = re.sub(toSub[i],stringtuple[i],output)
+        return output #若长度符合则返回替换后的字符串
+
+
 if __name__ == "__main__":
     print("数据库工具, import用.")