小编在学校正儿八经地学习了c++,java语言，而python是自学的，发现了它们之间有些不同，总结了下来，但不代表一定是正确的。

语言名字                     c++                                    java                                            python

类的写法                 class xx                                 class xx                                    class xx(object)

继承的写法              class xx:public yy                 class xx extends yy                   class xx(yy)

类型                            编译语言                             解释性语言                                 解释性语言

数组                         a={'1','2'}                                a={'1','2'}                                    不叫数组，叫列表：a=['1','2']

写法差异                  语句后加';'                               语句后加';'                                 语句后不加';'    

                            函数，类，if后面加"{}"               函数，类，if后面加"{}"            函数，类，if后面加':'

                             变量要事先声明                         变量要事先声明                        变量不用事先声明

                              this指针                                           this                                      self