#!/usr/bin/env python ###coding:utf-8### def hasUID(files,id): """ 查找id是否在files这个文件中 """ with open(files) as f: if f.read().find(id) == -1: return "False" else: return "True"
函数返回True,说明找到了字符串
另一种实现
#!/usr/bin/env python ###coding:utf-8### def hasUID(files,Uid): '''查找id是否在files这个文件中''' try: f = open(files,'r') try: lines = f.readlines() for str in lines: if Uid in str: return 'True' finally: f.close() except Exception: return 'False'