c语言基础(10-字符数据类型和字符串).htm

语言基础(初学都必修)包括数据类型、运算符与表达式,运算符和表达式,逻辑运算符和逻辑表达式,C语言中的关键字,定义宏和使用宏定义,数据类型转换

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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">-128~127<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 7.5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单精度字符型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR style="HEIGHT: 7.5pt">
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">int<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 7.5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=114>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">16<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">-32768~32767<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 7.5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 3cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; HEIGHT: 7.5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=113>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">基本数据类型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">unsigned int<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">16<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">0~65535<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无符号整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">signed int<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">16<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 135.65pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=181>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">-32768~32767<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">单精度整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">short int<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">16<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">-32768~32767<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">短整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 3cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=113>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">unsigned short int<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">16<o:p></o:p></SPAN></P></TD>
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<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">0~65535<o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 81pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=108>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN style="COLOR: white; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">无符号短整型</SPAN><SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 3cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=113>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center>&nbsp;<SPAN lang=EN-US style="COLOR: white"><o:p></o:p></SPAN></P></TD></TR>
<TR>
<TD style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 85.2pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=114>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><SPAN lang=EN-US style="COLOR: white">signed short int<o:p></o:p></SPAN></P></TD>