girth=2* pi*r; printf("girth=%6.2f ", girth); 12 格式输出(Formatted Output )函数printf() 函数的作用:向计算机系统默认的输出设备 (一般指终端或显示器)输出一个或多个任意 类型的数据。
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Pipes服务器以json格式输出数据。
很快将看到能够以json格式输出数据这一点至关重要。
The ability to output data in JSON format will become important shortly.
这种灵活性允许你编写XSL支持,以任何格式输出数据。
This flexibility allows you to write XSL that outputs data in any format that XSL transformations support.
Glancing at the bottom, this is pretty arbitrary, but I chose to format my string as follows: % 1f so at the bottom here I'm printing out %.1f, which quick sanity check means print just one digit after the decimal place.
看下这个底部,这个是相当随意的,但我选择把我的字符串格式化成这样:,所以在这个底部我打印输出,提醒一下,这是一个只打印出,小数点后一位的方法。
But if you avoid all of these minutia and focus really just on the idea, it looks like what was a blue say block, a so called statement, is now going to be something called printf where the F happens to stand for formatted.
但是如果你抛开所有这些繁琐的细节,把注意力集中到,它的编程思想,那么它只不过一个蓝色的say程序块,是一个声明,即所谓的printf函数,其中的f是,用于格式化输出。
Well, here is the F in printf for formatted printing.
这里printf中的f是用于格式化输出的。
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