Python is a small problem-CodePudding

How to ensure that the input for the digital (real)

CodePudding user response:

This program whether Numbers or other characters will prompt error

CodePudding user response:

n.. Isdigit ()

CodePudding user response:

 
Def pm2dot5 () : 
While True: 
N=input (" please enter a value: PM2.5) 
If n=='q: 
Break 
Try: 
Num=int (n) 
If num & lt; 35: 
Print (" air quality, it is recommended that the outdoor sports, ") 
Elif 35 & lt; Num=& lt;=75: 
Print (" air quality is good, it is recommended that the moderate outdoor sports, ") 
The else: 
Print (" air pollution, please be careful!" ) 
Except: 
Print (' data input is not correct, please input again! ') 

If __name__=="__main__ ': 
Pm2dot5 ()

CodePudding user response:

 n=input (" please enter a value: PM2.5) 
While not n.i sdigit () : 
N=input (" please enter a value: PM2.5) 
Num=int (n) 
Tishi=(lambda num: "air quality, it is recommended that the outdoor sports," if num & lt; 35 
The else "air quality is good, it is recommended that the moderate outdoor sports," if 35 & lt; Num=& lt;=75 
The else "air pollution, please be careful!" ) 
Print (tishi (num))

CodePudding user response:

The

reference 4 floor weixin_45903952 reply:

 n=input (" please enter a value: PM2.5) 
While not n.i sdigit () : 
N=input (" please enter a value: PM2.5) 
Num=int (n) 
Tishi=(lambda num: "air quality, it is recommended that the outdoor sports," if num & lt; 35 
The else "air quality is good, it is recommended that the moderate outdoor sports," if 35 & lt; Num=& lt;=75 
The else "air pollution, please be careful!" ) 
Print (tishi (num))

Didn't contain real!

CodePudding user response:

reference 5 floor overcomemyself reply:

Quote: refer to 4th floor weixin_45903952 response:

 n=input (" please enter a value: PM2.5) 
While not n.i sdigit () : 
N=input (" please enter a value: PM2.5) 
Num=int (n) 
Tishi=(lambda num: "air quality, it is recommended that the outdoor sports," if num & lt; 35 
The else "air quality is good, it is recommended that the moderate outdoor sports," if 35 & lt; Num=& lt;=75 
The else "air pollution, please be careful!" ) 
Print (tishi (num))

Didn't contain real!

Enter a non real number you tried?

CodePudding user response:

 n=input (" please enter a value: PM2.5) 
While not n.i sdigit () : 
N=input (" please enter the number:) 
Num=int (n) 
Tishi=(lambda num: "air quality, it is recommended that the outdoor sports," if num & lt; 35 
The else "air quality is good, it is recommended that the moderate outdoor sports," if 35 & lt; Num=& lt;=75 
The else "air pollution, please be careful!" ) 
Print (tishi (num))