异常处理
try: 错误语句 except: 异常处理 假设此文件不存在用 r 只读错误会执行下面的异常处理
try:
f= open("D/abc.txt","r",encoding = "UTF-8")
except:
f= open("D/abc.txt","a",encoding = "UTF-8")
try:
f= open("D/abc.txt","r",encoding = "UTF-8")
excep Exception as t:[Exception 是最大的异常]
print{f"异常的信息是{t}"}