1. 列印字串

print("His name is %s" % "Kenn")

效果：

2.列印整數

print("He is %d years old" % 25)

print("He is %d years old, and born in %d" % (25, 1990))

效果：

3.列印浮點數

print("His height is %f m" % 1.83)

效果：

4.列印浮點數（指定保留小數點位數，四捨五入）

print("His height is %.2f m" % 1.84)
print("His height is %.1f m" % 1.84)
print("His height is %.2f m" % 1.85)
print("His height is %.1f m" % 1.85)
 

效果：

5.指定佔位符寬度（右對齊）

print("Name:%10s Age:%8d Height:%8.2f" % ("Kenn", 25, 1.83))

效果：

6.指定佔位符寬度（左對齊）

print("Name:%-10s Age:%-8d Height:%-8.2f" % ("Kenn", 25, 1.83))

效果：

7.指定佔位符

print("Name:%-10s Age:%08d Height:%08.2f" % ("Kenn", 25, 1.83))

效果：

8.科學計數法

print(format(0.00154, '.2e'))
print(format(154000, '.2e'))
print(format(0.00154, '.1e'))
print(format(154000, '.1e'))
print(format(0.00155, '.1e'))
print(format(155000, '.1e'))
 

效果：