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
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 | |...
print("This number in scientific notation: %e" % 1234567) print("My chances are %%%d" % 100) # 'My chances are %100' 1. 2. 3. 4. 5. 6. 注意:%的方式虽然可以实现字符串格式化,但在 Python 3.6 以后,官方更推荐使用 f-string(格式化字符串)的方式,例如: name = "Alice" age = 25 pri...
参考链接: Python中的string.octdigits common string oprations import string 1. string constants(常量) 1) string. ascii_letters The concatenation of the ascii_lowercase and ascii_uppercase constants described below. This value is not locale-dependent. ...
precision Specifies the number of digits after the decimal point for floating-point presentation types, and the maximum output width for string presentations types Integer value type Specifies the presentation type, which is the type of conversion performed on the corresponding argument b, c, d, e...
sdifferent from the default. The expression starts with a colon to separate it from the field name that we saw before. After thecolon, we write “.2f”. This means we’re going to format afloat numberand that there should betwo digits after the decimal dot. So no matter what the ...
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。
number = 42 big_number = 1234567 print(f"{number:05}") # Output: 00042 (5-digit width, zero-padded) print(f"{big_number:,}") # Output: 1,234,567 (comma as a thousands separator) Padding with zeros ensures numbers line up in columns, while grouping digits with commas improves reada...
In the third statement,{:8.3f}truncates the decimal part into 3 places rounding off the last 2 digits. And, the number, now 12.235, takes a width of 8 as a whole leaving 2 places to the left. If you want to fill the remaining places with zero, placing a zero before the format sp...