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2207/C语言同步练习源码/5.指针-3.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+int main(){
+	char str[] = "AbcDEfg";
+	char *p = str;
+	
+	while(*p != '\0'){
+		if(*p >= 'a' && *p <= 'z'){
+			*p -= 32;
+		}else{
+			*p += 32;
+		}
+		p++;
+	}
+	puts(str);
+
+	return 0;
+}
+

2207/C语言同步练习答案.md

@@ -808,6 +808,28 @@ int main(){
 
 ![image-20250227231232971](https://yp.smallkun.cn/markdown/image-20250227231232971.png!compress)
 
+```c
+#include <stdio.h>
+
+int main(){
+	char str[] = "AbcDEfg";
+	char *p = str;
+	
+	while(*p != '\0'){
+		if(*p >= 'a' && *p <= 'z'){
+			*p -= 32;
+		}else{
+			*p += 32;
+		}
+		p++;
+	}
+	puts(str);
+
+	return 0;
+}
+
+```
+
 
 
 ### 指针-4