|
|
|
格式代码
|
A
|
ABC
|
ABCDEFGH
|
|
%S
|
A
|
ABC
|
ABCDEFGH
|
|
%5S
|
####A
|
##ABC
|
ABCDEFGH
|
|
%.5S
|
A
|
ABC
|
ABCDE
|
|
%5.5S
|
####A
|
##ABC
|
ABCDE
|
|
%-5S
|
A####
|
ABC##
|
ABCDEFGH
|
Printf 格式化字符串
|
格式代码
|
1
|
-12
|
12345
|
123456789
|
|
%d
|
1
|
-12
|
12345
|
123456789
|
|
%6d
|
#####1
|
###-12
|
#12345
|
123456789
|
|
%.4d
|
0001
|
-0012
|
12345
|
123456789
|
|
%6.4d
|
##0001
|
#-0012
|
#12345
|
123456789
|
|
%-4d
|
1####
|
-12#
|
12345
|
123456789
|
|
%04d
|
0001
|
-012
|
12345
|
123456789
|
|
%+d
|
+1
|
-12
|
+12345
|
+123456789
|
Printf格式化整型数值
|
格式代码
|
1
|
.01
|
.00012345
|
12345.6789
|
|
%f
|
1.000000
|
0.010000
|
0.000123
|
12345.678900
|
|
%10.2d
|
######1.00
|
#####0.01
|
######0.00
|
##12345.67
|
|
%e
|
1.000000e+00
|
1.000000e-02
|
1.234500e-04
|
1.234568e+04
|
|
%.4e
|
1.0000e+00
|
1.0000e-02
|
1.2345e-04
|
1.2346e+04
|
|
%g
|
1
|
0.01
|
0.00012345
|
12345.7
|
|
格式代码
|
6.023e23
|
|
%f
|
60229999999999975882752.000000
|
|
%10.2e
|
60229999999999975882752.00
|
|
%e
|
6.023000e+23
|
|
%.4e
|
6.0230e+23
|
|
%g
|
6.023e+23
|
Printf格式化浮点值
|
|
