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python ljust,rjust,center,zfill对齐使用方法

字符串在输出时的对齐:
S.ljust(width,[fillchar]) 
#输出width个字符,S左对齐,不足部分用fillchar填充,默认的为空格。 
S.rjust(width,[fillchar]) #右对齐 
S.center(width, [fillchar]) #中间对齐 
S.zfill(width) #把S变成width长,并在右对齐,不足部分用0补足 

实例

 1 >>> str = "this is string example....wow!!!";
 2 >>> str.ljust(50,0)
 3 this is string example....wow!!!000000000000000000
 4 >>> str.ljust(50)
 5 this is string example....wow!!!                  
 6 >>> str.rjust(50)
 7                   this is string example....wow!!!
 8 >>> str.rjust(50,0)
 9 000000000000000000this is string example....wow!!!
10 >>> str.center(50,0)
11 000000000this is string example....wow!!!000000000
12 >>> str.center(50)
13          this is string example....wow!!!         
14 >>> str.zfill(50)
15 000000000000000000this is string example....wow!!!
16 >>>

 

python ljust,rjust,center,zfill对齐使用方法