python 基础之格式化输出

字符占位符%s

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#_cvvh:"chenxi" #date:  2019/6/24 print ('chhjg') # 格式化输出 name = input("Name:") age = input("age:") job = input("job:") salary = input("salary:")   mag = ''' -------------info of  ---- Name: %s Age: %s Job: %s Salary: %s -----------------end--------- ''' % (name, age , job ,salary )  一一对应注意顺序 print(mag)

　　测试

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D:\python\python.exe D:/untitled/dir/ghg.py chhjg Name：chenxi age:34 job:765 salary:678   -------------info of  ---- Name: chenxi Age: 34 Job: 765 Salary: 678 -----------------end---------     Process finished with exit code 0

　　字符串转换数字

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#_cvvh:"chenxi" #date:  2019/6/24 print ('chhjg') # 格式化输出 name = input("Name:") age = int(input("age:")) job = input("job:") salary = input("salary:")   mag = ''' -------------info of  ---- Name: %s Age: %s Job: %s Salary: %s df: %s -----------------end--------- ''' % (name, age , job ,salary ,65-age )  一一对应 print(mag) 测试 chhjg Name:chen age:25 job:258 salary:2415   -------------info of  ---- Name: chen Age: 25 Job: 258 Salary: 2415 df: 40 -----------------end---------

　　判断是不是输入的数字

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#_cvvh:"chenxi" #date:  2019/6/24 print ('chhjg') # 格式化输出 name = input("Name:") age = int(input("age:"))  job = input("job:") salary = input("salary:") if salary.isdigit():  #判断salary像不像数字，比如200b/200     salary = int(salary)  #像数字直接转换成数字 else:  #如果输入不是数字就打印mount，并退出     print("mount")     exit() #退出程序   mag = ''' -------------info of  ---- Name: %s Age: %s Job: %s Salary: %s df: %s -----------------end--------- ''' % (name, age , job ,salary ,65-age ) print(mag) 测试-1 D:\python\python.exe D:/untitled/dir/ghg.py chhjg Name:cdtfh age:56 job:hjkhj salary:85l mount   Process finished with exit code 0 测试-2 D:\python\python.exe D:/untitled/dir/ghg.py chhjg Name:hgt age:25 job:hghgh salary:987690   -------------info of  ---- Name: hgt Age: 25 Job: hghgh Salary: 987690 df: 40 -----------------end---------     Process finished with exit code 0

%d  数字占位符

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#_cvvh:"chenxi" #date:  2019/6/24 print ('chhjg') # 格式化输出 name = input("Name:") age = int(input("age:")) job = input("job:") salary = input("salary:") if  salary.isdigit():        salary = int(salary) #else:  #如果输入不是数字就打印mount，并退出 #     print("mount") #     exit() #退出程序 mag = ''' -------------info of  ---- Name: %s Age: %s Job: %s Salary: %d df: %s -----------------end--------- ''' % (name, age , job ,salary ,65-age ) print(mag)

　　测试-1

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D:\python\python.exe D:/untitled/dir/ghg.py chhjg Name:tygh age:68 job:hjhj salary:jhjhj Traceback (most recent call last):   File "D:/untitled/dir/ghg.py", line 22, in <module>     ''' % (name, age , job ,salary ,65-age ) TypeError: %d format: a number is required, not str   Process finished with exit code 1

　　%f精度数字占位符

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#_cvvh:"chenxi" #date:  2019/6/24 print ('chhjg') # 格式化输出 name = input("Name:") age = int(input("age:")) job = input("job:") salary = input("salary:") if  salary.isdigit():        salary = int(salary) #else:  #如果输入不是数字就打印mount，并退出 #     print("mount") #     exit() #退出程序 mag = ''' -------------info of  ---- Name: %s Age: %s Job: %s Salary: %f df: %s -----------------end--------- ''' % (name, age , job ,salary ,65-age ) print(mag)