Original addressOne, Printf output formatThe general form of a format string in C is:%[flag [output minimum width] [. precision] [length] type, where the entry in square brackets [] is optional. The meanings of the items are described as follows:1.
C language printf output format control, printf output format
C language printf output format Control
Printf is familiar to everyone, but it is rare to estimate its usage. Go to another article and organize it in another day.
1. Conversion
The printf function is called the format output function, and the last letter F of its keyword is the meaning of format. The function is to display the specified data to the display screen according to the user-specified format. We have used this
Original address: http://blog.sina.com.cn/s/blog_605f5b4f0100x3ep.htmlFirst declare: in VC + + compiled printf does not automatically do type conversion, such as int a=3; printf ("%f", a), error during operation, runtime error r6002:floating point
This may be a problem for students who have just come into contact with C language.Because the blogger is also a rookie, often because I can't figure out the problem of single-precision double-precision and input-output formatOn this issue also
Format of the C language input/output functions printf and scanf, format rules such as % 5.4f and other similar issues The turbo c2.0 Standard Library provides two consoles for formatting Input and Output Functions: printf () and scanf (),
These
printf ("%f\n", 5);printf ("%d\n", 5.01);printf ("%f\n", (float) 5);printf ("%f\n", 5.f);Out0.00000018897856105.0000005.000000It feels very strange to see the result. How can I output 0 at 1? 2 Why does it show such a large number?Explain:The
Reprinted from: http://dev.firnow.com/course/3_program/c++/cppjs/20090830/172982.html
[Study Notes -- printf () output format control]Hzh-fa published on 12:26:00
1. Conversion specifiers% A (% A) floating point number, hexadecimal number, and
/* Use the conversion specifier */# Include # Include # Define PI 3.141593 // The first method to create a symbolic constant# Define pages 93179962# Define blurb "authentic imtation! "# Define words 65618# Define pages2 336Int main (void){Printf ("\
This article introduces the three most commonly used input and output functions scanf (), printf (), GetChar () and Putchar () in C language.One, scanf () functionThe function of the format input function scanf () is to enter data from the keyboard,
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