组合运算符（复合运算符）实验

<p> <span style="font-family:SimSun;">按以下要求编程。请使用合适的变量类型</span> </p> <table style="width:500px;" border="1" cellspacing="2" bordercolor="#000000"> <tbody> <tr> <td> <p> <span style="font-family:SimSun;">把10赋值给整型变量a</span> </p> <p> <span style="font-family:SimSun;">输出“a: </span><span style="font-family:SimSun;">”以及变量a的值并换行</span> </p> <p> <span style="font-family:SimSun;">把变量a增加5</span> </p> <p> <span style="font-family:SimSun;">输出“a+5: ”以及变量a的值并换行</span> </p> <p> <span style="font-family:SimSun;">用++命令把变量a递增1</span> </p> <p> <span style="font-family:SimSun;">输出“a++: ”以及变量a的值并换行</span> </p> <p> <span style="font-family:SimSun;">用+=命令把变量a递增5</span> </p> <p> <span style="font-family:SimSun;">输出“a+=5: ”以及变量a的值并换行</span> </p> <p> <span style="font-family:SimSun;">&nbsp;</span> </p> <p> <span style="font-family:SimSun;">把50赋值给整型变量b</span> </p> <p> <span style="font-family:SimSun;">输出“b: ”以及变量b的值并换行</span> </p> <p> <span style="font-family:SimSun;">将变量b的值减少10</span> </p> <p> <span style="font-family:SimSun;"><span style="font-family:SimSun;">输出“b-10: ”以及变量b的值并换行</span> </p> </span> <p> <span style="font-family:SimSun;">用--命令把变量b递减1</span> </p> <p> <span style="font-family:SimSun;">输出“b--: ”以及变量b的值并换行</span> </p> <p> <span style="font-family:SimSun;">用-=命令把变量b递减10</span> </p> <p> <span style="font-family:SimSun;">输出“b-=10: ”以及变量b的值并换行</span> </p> <p> <span style="font-family:SimSun;"></span> </p> </td> </tr> </tbody> </table> <p> <span style="font-family:SimSun;">&nbsp;</span><span style="font-family:SimSun;"> 提示：</span> </p> <p> <span style="font-family:SimSun;">注意体会 ++ -- += -=的作用</span> </p> <p> <span style="font-family:SimSun;">注意输出时“a: </span><span style="font-family:SimSun;">” 冒号后面有一个空格</span> </p>