Reading Notes II:Think Python

%：返回两数相除后的余数
eg：60%60->0
elif: else if

Print常用输出：

print('字符串 ' + 字段名 + '字符串')
print(A, end=" ")：输出后面加空格

Practice

import math
def sequence(n):
    print
    while n<=9:
        print(float(n),end=" ")         
        print(sqrts(n),end=" ")
        print(math.sqrt(n),end=" ")
        print(abs(math.sqrt(n)-sqrts(n)))
        n=n+1
       # print(sqrts(n),math.sqrt(n),end=" ")
def sqrts(a):
    x=6
    while True: 
        y = (x + a/x) / 2
        if y==x:
            break
        x=y
    return x
输出结果：
1.0 1.0 1.0 0.0
2.0 1.414213562373095 1.4142135623730951 2.220446049250313e-16
3.0 1.7320508075688772 1.7320508075688772 0.0
4.0 2.0 2.0 0.0
5.0 2.23606797749979 2.23606797749979 0.0
6.0 2.449489742783178 2.449489742783178 0.0
7.0 2.6457513110645907 2.6457513110645907 0.0
8.0 2.82842712474619 2.8284271247461903 4.440892098500626e-16
9.0 3.0 3.0 0.0