Golang

// 断言
import (
  "testing"
  "github.com/stretchr/testify/assert"
)
func TestSomething(t *testing.T) {
	assert := assert.New(t)
	assert.Equal(1, 2, "错误信息")
}

// 异常
defer func() {
	if err := recover(); err != nil {
		fmt.Println(err)
	}
}()
panic("抛出异常")

Nodejs

// 断言
const assert = require("assert");
assert(1>2, '错误信息');

// 异常
try {
	throw new Error('抛出异常');
} catch (err) {
	console.log(err.code, err.message);
} finally {
    console.log('最终执行')
}

Python

// 断言
assert(1>2)

// 异常
try:
    raise Exception('抛出异常')
    pass
except KeyError:
    print('字典关键字不存在')
    pass
except IndexError:
    print('索引超出序列范围')
    pass
except TypeError:
    print('不同类型数据之间的无效操作')
    pass
except (AttributeError, NameError):
    print('对象属性不存在时')
    print('访问未声明的变量')
    pass
except Exception as err:
    print(err)
else:
    print('没有异常')
    pass
finally:
    print("最终执行")

C#

// 断言
// 只有在debug模式下才生效
System.Diagnostics.Debug.Assert(1 > 2);

// 异常
try  {
	throw new Exception("抛出异常");
}
catch (Exception e)  {
	Console.WriteLine(e.Message);
	Console.WriteLine(e.StackTrace.Trim());
}
finally {
	Console.WriteLine("最终执行");
}

标签：断言,err,except,assert,pass,print,异常
来源： https://www.cnblogs.com/fanyang1/p/16630191.html