firstName ='Bob'lastName='Dylan'print('你的名字是%s, 你的姓是%s'% (firstName, lastName)) 对于string, list等类型的变量,一律可用%s代替。 对于int类型,用%d 对于float类型,用%f 如果需要对float类型的变量进行小数点后位数的控制,则使用%.<number of digits>f。如 pai = 3.14159print('%.2f'%pai...
对于string, list等类型的变量，⼀律可⽤%s代替。对于int类型，⽤%d 对于float类型，⽤%f 如果需要对float类型的变量进⾏⼩数点后位数的控制，则使⽤%.<number of digits>f。如 pai = 3.14159 print('%.2f' % pai)print('%.4f' % pai)#输出结果为3.14和3.1416 对于tuple, list等，可以...
the '%' operator is used to format a set of variables enclosed in a "tuple" ( a fixed size list) | %s | string | | %d | integers | | %f | floating point numbers | | %.<number of digits>f | floating point numbers with a fixed amount of digits to the right of the dot | |...
Strings can beconcatenatedto build longer strings using the plus sign and also they can bemultipliedby a number, which results in the continuous repetition of the string as many times as the number indicates. Also, if we want to find out thelengthof the string, we simply have to use thelen...
In the example above, there are a lot of numbers displaying after the decimal point, but you can limit those. When you are specifyingffor float values, you can additionally specify the precision of that value by including a full stop.followed by the number of digits after the decimal you ...
%.<number of digits>f:保留特定位数的浮点数 %x:十六进制数,小写 %X:十六进制数,大写 %e:科学计数法,小写 e %E:科学计数法,大写 E %o:八进制数 %%:字面意义的百分号 举例来说: print("I have %d cats" % 2) print("My name is %s" % "Alice") ...
format(0xae123fcc8ab2) '0xae12_3fcc_8ab2' If you try to specify grouping_option with any presentation type other than those listed above, then your code will raise an exception.The precision Component The precision component specifies the number of digits after the decimal point for ...
You can gain additional control over the resulting format by using conversion flags, which you’ll learn more about in an upcoming section.Remove ads Floating-Point Conversion TypesConversion types f and F convert to a string representation of a floating-point number, while e and E produce a ...
Concatenate any number of strings. The string whose method is called is inserted in between each given string. The result is returned as a new string. Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs' 连接任意数量的字符串。
Format String Syntax Replacement Fields Syntax 替代字段特点 standard format specifier 对齐(align) 符号(sign) \#号选项 千位分隔符(thousand separator) 最小域宽(field width) 精度(precision) 类型(type) 什么是str.format呢? str.format()就是字符串类型的一个函数,它用来执行字符串格式化操作。