Exception 异常中如何处理作用域
异常期间如何处理变量的作用域?我想这将是特定语言的,任何特定语言的答案都非常感谢。至少可能是大的<代码>C++、python、Java。这就是我的意思: pythonException 异常中如何处理作用域,exception,exception-handling,scope,Exception,Exception Handling,Scope,异常期间如何处理变量的作用域?我想这将是特定语言的,任何特定语言的答案都非常感谢。至少可能是大的C++、python、Java。这就是我的意思: python try: for k, v in map.iteritems(): cnf.conf.set( section, k, v ) for i, j in map2.iteritems(): dosomething
try:
for k, v in map.iteritems():
cnf.conf.set( section, k, v )
for i, j in map2.iteritems():
dosomethingelse()
for m in range(10):
morestuff()
except SpecificError:
vars = (k, v, i, j, m)
finally:
vars in scope #?
或者更复杂的东西,比如嵌套块:
try:
try:
for k, v in map.iteritems():
cnf.conf.set( section, k, v )
for i, j in map2.iteritems():
dosomethingelse()
for m in range(10):
morestuff()
except SpecificError:
vars = (k, v, i, j, m)
except:
vars in scope #?
在java中,我相信您无法做到以下几点:
try {
String s = "Hello, finally!";
...
}
finally {
System.out.println(s);
}
你必须改为:
String s = null;
try {
s = "Hello, finally!";
...
}
finally {
System.out.println(s);
}
换句话说,变量的范围仅限于定义它的块
嗯