The lvalue and rvalue in the assignment statement is separated by a colon plus an equal sign (: = ) .
任务声明中的lvalue与rvalue由一个冒号加等号隔离开来（：=）。
The lvalue and rvalue in the assignment statement is separated by a : = ( colon plus equal sign ) .
分配声明中的lvalue和rvalue以：=（冒号加等号）被隔开。
In this example , if the match succeeds , the resulting fields are a decomposition that separates out the lvalue , operator , and rvalue of any assignment line .
