代码先锋网 代码片段及技术文章聚合

7-1 jmu-python-输入输出-格式化输出字符串 (10分)

float1=input()    
int1=input()
str1=input()
a=float(float1)   
print("%.2f"%a)
print("%e %E %.2f%%"%(a, a, a*100))
print("{0:b}".format(int(int1)), end="")   
print(" %x"%int(int1))
c=str.strip(str1)
print(str.upper(c))
print("%20s"%c)
print(c.center(20, "*"))   
print("{} + {} = {}".format(a, int(int1), a+int(int1)))

7-2 jmu-python-运算符-找钱 (10分)

n = eval(input())
for i in range(n):
    money = eval(input())
    back_money = money
    shi = money//10
    money = money % 10
    wu = money // 5
    money = money % 5
    ge =  money
    print("{} = {}*10 + {}*5 + {}*1".format(back_money, shi, wu, ge))

7-3 jmu-python-分段函数&数学函数 (15分)

import sys
import codecs
import random
sys.stdout = codecs.getwriter("utf-8")(sys.stdout.detach())

import math

x = eval(input())

if math.fabs(x) < 1:
    print("f({:.3f})={:.3f}".format(x,math.sqrt(2 - 2 * x)))
elif x >= 1:
    n = math.cos(x) + x**2
    m = 2.5 + math.fabs(x + math.log1p(99))
    print("f({:.3f})={:.3f}".format(x,n/m))
else:
    e = math.e;
    e = e**(x)
    print("f({:.3f})={:.3f}".format(x,e))
    

7-4 产生每位数字相同的n位数 (30分)

import sys
import codecs
import random
sys.stdout = codecs.getwriter("utf-8")(sys.stdout.detach())

import math

a,b = eval(input())
for i in range(b):
    print(a,end = "")

7-5 输出10个不重复的英文字母 (30分)

s = input()
st = set()
ls = []
for x in s:
    if 'a' <= x <= 'z' or 'A' <= x <= 'Z':
        l = len(st)
        st.add(x.lower())
        if len(st) > l:
            ls.append(x)
if len(ls) < 10:
    print('not found')
else:
    for i in range(10):
        print(ls[i],end = "")

7-6 转换函数使用 (30分)

a,b = input().split(',')
c = a
base = int(b)
l = len(c) - 1
Sum = 0
for x in c:
    Sum = Sum + int(x)*(base**l)
    l = l - 1
print(Sum)

7-7 列表去重 (40分)

ls = eval(input())
l = []
for x in ls:
    if x not in l:
        l.append(x)
for i in range(len(l) - 1) :
    print(l[i],end = " ")
print(l[len(l) - 1])