1、打印字符串print ("His name is %s"%("Aviad"))效果:
2、打印整数print ("He is %d years old"%(25))效果:
3、打印浮点数print ("His height is %f m"%(1.83))效果:
4、打印浮点数(指定保留小数点位数)print ("His height is %.2f m"%(1.83))效果:
5、指定占位符宽度print ("Name:%10s Age:%8d Height:%8.2f"%("Aviad",25,1.83))效果:
6、指定占位符宽度(左对齐)print ("Name:%-10s Age:%-8d Height:%-8.2f"%("Aviad",25,1.83))
举个例子
def a():return 1
#如果我们要把这个1变成浮点,我们可以
b = fload(a())
#或者在return 那行就变成float
def a():
return float(a)