[已解决]python 2.7

python！

for i in range(1, 10):
    for y in range(1,10):
        print '%s * %s = %s'%(i,y,i*y)

for i in range(1, 10):
    for y in range(1,10):
        print '%d * %d = %d'%(i,y,i*y)


那个%d %s   是起什么作用  输出结果是一样的   

1 * 1 = 1

1 * 2 = 2

1 * 3 = 3

1 * 4 = 4

1 * 5 = 5

1 * 6 = 6

1 * 7 = 7

1 * 8 = 8

1 * 9 = 9

2 * 1 = 2

2 * 2 = 4

2 * 3 = 6

2 * 4 = 8

2 * 5 = 10

2 * 6 = 12

2 * 7 = 14

2 * 8 = 16

2 * 9 = 18

3 * 1 = 3

3 * 2 = 6

3 * 3 = 9

3 * 4 = 12

3 * 5 = 15

3 * 6 = 18

3 * 7 = 21

3 * 8 = 24

3 * 9 = 27

4 * 1 = 4

4 * 2 = 8

4 * 3 = 12

4 * 4 = 16

4 * 5 = 20

4 * 6 = 24

4 * 7 = 28

4 * 8 = 32

4 * 9 = 36

5 * 1 = 5

5 * 2 = 10

5 * 3 = 15

5 * 4 = 20

5 * 5 = 25

5 * 6 = 30

5 * 7 = 35

5 * 8 = 40

5 * 9 = 45

6 * 1 = 6

6 * 2 = 12

6 * 3 = 18

6 * 4 = 24

6 * 5 = 30

6 * 6 = 36

6 * 7 = 42

6 * 8 = 48

6 * 9 = 54

7 * 1 = 7

7 * 2 = 14

7 * 3 = 21

7 * 4 = 28

7 * 5 = 35

7 * 6 = 42

7 * 7 = 49

7 * 8 = 56

7 * 9 = 63

8 * 1 = 8

8 * 2 = 16

8 * 3 = 24

8 * 4 = 32

8 * 5 = 40

8 * 6 = 48

8 * 7 = 56

8 * 8 = 64

8 * 9 = 72

9 * 1 = 9

9 * 2 = 18

9 * 3 = 27

9 * 4 = 36

9 * 5 = 45

9 * 6 = 54

9 * 7 = 63

9 * 8 = 72

9 * 9 = 81

最佳答案

月排行榜 / 总排行榜

BngThea

2017-12-8 10:22:02

占位符，分别有后面的变量（或者常量）来填充这个位置
比如

1. "%s is mine"%"This book"

复制代码

相当于将This  book 填充到 %s 的位置

你可以用多个占位符，比如

1. "%s 排名第 %d" % ("小甲鱼"，1)

复制代码

占位符中的字母的具体含义请查看
http://bbs.fishc.com/thread-92997-1-1.html

跳转到最佳答案楼层

BngThea

占位符，分别有后面的变量（或者常量）来填充这个位置
比如

1. "%s is mine"%"This book"

复制代码

相当于将This  book 填充到 %s 的位置

你可以用多个占位符，比如

1. "%s 排名第 %d" % ("小甲鱼"，1)

复制代码

占位符中的字母的具体含义请查看
http://bbs.fishc.com/thread-92997-1-1.html

lhzhhhqqq

%s代表输出为字符串的形式，%d代表整数的形式，%f代表小数形式