Excel是一个如此强大的电子表格程序，我怀疑任何人都可能知道它所能做的一切。程序有这么多方面，可以把它全部封装在这样一个简单的界面中，真是太神奇了。我最近在家里使用Excel进行一些工作，发现自己使用 IF 函数编写了一些公式。(Excel)
能够在Excel中编写简单的 IF 语句是必不可少的，尤其是当您一直处理大量数字时。它是一种不像宏那样复杂的东西，但不一定像总结一列数字那样直观。
Excel 中的 IF 语句
在本文中，我将向您介绍在Excel工作表中编写 IF 语句的简短入门。首先，您应该了解所有 IF 语句的基础：
IF condition THEN true ELSE false
差不多就是这样。条件通常是对某物的比较。那东西通常是数字或文本。我们将从一些基本的数字比较开始，然后是文本，然后包括AND/OR等运算符。所以这是我们的第一个示例：
我们这里有一个非常简单的例子。两列有两个数字，25 和 35。如果Column C，我们要检查Column A是否大于 10，我们将输出文本Yes，否则输出文本No。需要注意的几点：
1.你不必在实际比较的周围放一组括号，但这是非常好的做法，尤其是当比较变得更加复杂时。
2. 要输出真假值的文本，必须使用双引号。如果您不这样做，它会认为您正在尝试引用Excel中的命名范围。
现在让我们看看您可以做更多的事情。在比较部分，你也可以做数学。例如，如果您愿意，可以这样做：
这里我们说如果 A2 乘以 10 的值大于 10，则输出Yes，否则输出 No。很(Pretty)简单吧？现在假设我们想要输出数字而不是文本。这是一个例子：
在这个例子中，如果 A2 中的值大于 10，它将输出该值乘以 2，否则它将将该值乘以 5。相当(Pretty)没用，但你明白了。您也可以在公式中使用其他单元格的值。
这里我们说如果 A2 的值大于 10，则将 B2 乘以 10，否则将 B2 乘以 5，并将该值输出到单元格 C2。现在让我们把它变得更复杂。如果我们想在 A2 和 B2 都大于 10时输出Yes怎么办？(Yes)
这里有新东西！如果我们想要A2 > 10 AND B2 > 10，那么我们必须在 IF 函数中使用AND函数。听起来很棘手，但还不错。AND函数基本上采用多个比较参数 ( A2 A2 > 10 ) 并对它们执行AND。它们都必须为真才能显示“是(Yes)”。如果您愿意，可以添加三个或四个或更多比较参数。如果您想做 OR，只需将上面的AND替换为OR。
如果您想返回文本或计算数字以外的值怎么办。如果您想在不同的工作表上返回单元格的值怎么办？好吧，你可以这样做：
对于真实值，我将返回Sheet 2上单元格 A1 的值。这很容易！因此，如果您愿意，您可以轻松地参考其他工作表中的值。同样，您也可以在逻辑比较中使用另一张表中的值，即 Sheet2!A1 > 10。让我们看看您可以做更多的事情！假设您想根据存储在单元格中的值类型（数字、文本或空白）执行 IF 语句。你可以这样做：
您可以将ISTEXT和ISNUMBER用于其他两种类型的数据。这些函数在编写 IF 公式时非常方便。请注意，您基本上可以在 IF 语句中使用Excel中的大多数函数，因此请随意使用。例如，您可以使用SUM、MAX、MIN等函数。
到目前为止，我们只在逻辑比较中使用了一个值，但假设我们想要使用一组单元格。例如，如果单元格区域中的所有数字都大于 10，则输出True，否则输出False。
就像使用上面显示的冒号一样简单，A2:A4。在这种情况下，将测试从 A2 到 A4 的每个值是否大于 10。如果都大于 10，则显示真实值。嵌套的 IF 语句呢？
这里我是说如果A2大于10，就输出一个值，如果不是，就再进行一次IF比较。如果 B2(IF B2)大于 10，则输出不同的值。你可以嵌套 64 层的 IF 语句，这意味着你可以做一些相当复杂的事情。你可能永远不需要走那么远，但有时它在几个层次上很有用。
这只是对 IF 语句的基本介绍，但希望它能帮助您入门。您是否正在尝试编写 IF 语句以在Excel中执行某些操作但无法弄清楚？在这里发表评论，我会尽力帮助您编写正确的 IF 公式。享受！
How to Write an IF Formula/Statement in Excel
Excel іs such a powerful spreadsheet progrаm thаt I dоubt anyone can possibly know everything that it can do. There are sо many aspects to the program, it’s amazing that it can all be еncapsulated in such a simple interfacе. I was recently using Excel for some work at home and found myself using thе IF function to write a few formulas.
Being able to write a simple IF statement in Excel is essential, especially if you deal with a lot of numbers all the time. It’s one of those things that’s not too complicated like macros, but not necessarily intuitive like summing up a column of numbers.
IF Statements in Excel
In this article, I’ll walk you through a short primer on writing a IF statement in an Excel worksheet. To get started, you should understand the basis of all IF statements:
IF condition THEN true ELSE false
That’s pretty much it. The condition is usually a comparison of something. That something is normally numbers or text. We’ll start off with some basic number comparisons, then text, then include operators like AND/OR, etc. So here’s our first example:
We have a very simple example here. Two columns with two numbers, 25 and 35. If Column C, we want to check if Column A is greater than 10, we will output the text Yes, otherwise the text No. A few things to note:
1. You don’t have to put a set of parenthesis around the actual comparison, but it’s very good practice, especially when the comparison becomes more complicated.
2. To output text for the true or false value, you have to use double quotes. If you don’t, it will think you are trying to refer to a named range in Excel.
Now let’s see some more stuff you can do. In the comparison section, you can also do math too. For example, you can do this if you like:
Here we are saying that if the value of A2 times 10 is greater than 10, then output Yes, otherwise output No. Pretty straight-forward eh? Now let’s say we wanted to output numbers instead of text. Here’s one example:
In this example, if the value in A2 is greater than 10, it will output the value times 2, otherwise it will multiply the value by 5. Pretty useless, but you get the point. You can also use the value of other cells too in the formula.
Here we are saying that if the value of A2 is greater than 10, then multiple B2 by 10, otherwise multiple B2 by 5 and output that value into cell C2. Now let’s make it more complicated. What if we wanted to output Yes if both A2 and B2 are greater than 10?
Here’s something new! If we want A2 > 10 AND B2 > 10, then we have to use the AND function inside the IF function. Sounds tricky, but not too bad. The AND function basically takes multiple comparison arguments (A2 > 10) and does an AND on them. They all have to be true in order for “Yes” to be displayed. You can add three or four or more comparison arguments if you like. If you want to do an OR, simply replace the AND above with the word OR.
What about if you want to return a value other than text or a calculated number. What if you want to return the value of a cell on a different sheet? Well, you can do something like this:
For the true value, I am going to return the value of cell A1 on Sheet 2. That’s pretty easy! So you can easily reference values from other sheets if you like. In the same light, you can also use a value from another sheet in the logical comparison too, i.e. Sheet2!A1 > 10. Let’s look at more stuff you can do! Let’s say you wanted to do an IF statement based on the type of value stored in a cell (number, text, or blank). You can do something like this:
You can use ISTEXT and ISNUMBER for the other two types of data. These functions can be really convenient when writing IF formulas. Note that you can basically use most functions in Excel inside of a IF statement, so feel free to run loose. For example, you can use functions like SUM, MAX, MIN, etc.
So far we’ve only been working with one value in the logical comparison, but let’s say we want to work with a group of cells. For example, if all the numbers in a range of cells is greater than 10, output True, otherwise False.
It’s as simple as using the colon like shown above, A2:A4. In this case, each value from A2 to A4 will be tested to see if it’s greater than 10. If all of them are, then the true value will be displayed. What about nested IF statements?
Here, I am saying that if A2 is greater than 10, output a value, but if not, then perform another IF comparison. IF B2 is greater than 10, then output a different value. You can nest IF statements 64 levels deep, which means you can do some pretty complicated stuff. You’ll probably never need to go that far, but sometimes it’s useful a few levels deep.
This is only a basic introduction to the IF statement, but hopefully it’ll get you started. Are you trying to write an IF statement to do something in Excel and can’t figure it out? Post a comment here with the problem and I’ll try to help you write the proper IF formula. Enjoy!
