ABAP 用Shift去掉字符串的前导’0’详解编程语言

SHIFT str LEFT DELETING LEADING ‘0’.

如果要在layout显示不出前面的0 格式: &字段(zc)&

如果要在layout显示不出小数点后面的0 格式:   &字段(.0)&

关于shift

1.Shift a structure by a given number of postions

SHIFT <c> [BY <n> PLACES] [<mode>].

This statement shifts the field <c> by <n> positions. If you omit BY <n> PLACES, <n> is

interpreted as one. If <n> is 0 or negative, <c> remains unchanged. If <n> exceeds the length

<c>, <c> is padded with blanks. <n> can be variable.

With the different (<mode>) options, you can shift the field <c> in the following ways:

· LEFT:

Shift <n> positions to the left and pad with <n> blanks on the right (default setting).

· RIGHT:

Shift <n> positions to the right and pad with <n> spaces on the left.

· CIRCULAR:

Shift <n> positions to the left so that <n> characters on the left appear on the right.

2.Shift a structure up to a given string

To shift field contents up to a given string, use the SHIFT statement as follows

Syntax

SHIFT <c> UP TO <str> <mode>.

ABAP searches the field contents of <c> until it finds the string <str> and shifts the field <c> up to

the field margin. The (<mode>) options are the same as described in the section Shifting a

Structure by a Given Number of Positions [Page 201]. <str> can be a variable.

If <str> is not found in <c>, SY-SUBRC is set to 4 and <c> is not shifted. Otherwise, SY-SUBRC is set to 0.

3.Shifting a structure according to the first or last character

You can use the SHIFT statement to shift a field to the left or to the right, provided the first or last

character satisfies a certain condition. To do this, use the following

syntax:

SHIFT <c> LEFT DELETING LEADING <str>.

SHIFT <c> RIGHT DELETING TRAILING <str>.