创建子vi，将四个输入多转换到单个输出。子vi应该具有四个浮点型数字控件，一个浮点数指示器，一个八位无符号整数控件。-Create sub-vi, the four-input multiple-converted to a single output. The sub vi should have four floating-point digital control, a float indicator, an eight-bit unsigned integer controls.