first operand

基本解釋

Next, click the first operand?, then choose Select an event.
下一步，單擊第一個(gè) operand? ，然后選擇 Select an event。
Any high-order bits that are not within the range of the type of the first operand after the shift are discarded, and the low-order empty bits are zero-filled.
不在移位后第一個(gè)操作數(shù)類型范圍內(nèi)的任意高序位均不會(huì)使用，低序空位用零填充。
In the Second operand field, you can either select the input for the block (a reference that contains a string value to be compared with the First operand), or you can type in a value.
在 Second operand 域，您既可以為塊（一個(gè)包含與 First 運(yùn)算域比較的字符串值的引用）選擇輸入，也可以鍵入一個(gè)值。