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exception handler development. AVI;\SPRINGMVC\DAY02\09SPRINGMVC Exception Handling-throws an exception. Avi;\springmvc\day02\10springmvc upload a picture. AVI;\SPRINGMVC\DAY02\11SPRINGMVC Implementing JSON interaction-Requestbody and RESPONSEBODY.AVI;\SPRINGMVC\DAY02\12SPRINGMVC for JSON interaction-prepare the environment. AVI;\SPRINGMVC\DAY02\13SPRINGMVC Implementing JSON interaction-JSON Interactive test. AVI;\SPRINGMVC\DAY02\14SPRINGMVC to restful support. AVI;\SPRINGMVC\DAY02\15SPRINGMVC I
value to the function caller 3: return value Note point 4: 1> void represents no return value 5: 2> If the return value type is not explicitly stated, the default is to return the int type 6: 3> Even if the return value type is explicitly declared, no value can be returned 7: By default, the C language does not allow the same name as two functions6. Steps to define a function 1: 1> A meaningful name based on function 2: 2> Determining the number of formal paramet
0. The pits that I actually encountered If you use a standard keyboard with a Mac, you cannot enter with the scanf on the keypad, or the system will not be well recognized. 1. Basic use of scanf function 1: //define a variable to hold the integer entered by the user 2: int number; 3: 4: //The SCANF function accepts only the address of the variable 5: //The scanf function is a blocking function that waits for user input 6: //When user input is complete
: : float height = 1.78f; 37: Number : //%f used to output decimals, default is 6 decimal places : printf ("height is%.2f\n", height); 40: 41: : char' D '; : printf ("integral grade is%c\n", Scoregrade); 44: 45: : printf ("score is%d, height is%f, rank is%c\n"' C '); 47: : return 0; : } 4. The scope of the variable starts with the line of code that defines the variable and ends at the end of
In summary, there are three types of annotations: 1. Single-line Comment 1: //haha single-line comment2. Multi-line annotations 1: /* 2: asdfasdfasdfasdfasdf 3: * /Where multiple lines of comments are written 1: /* 2: * function is ... 3: * / 4: void dosomething () {...}The compiler can automatically recognize when the mouse clicks on the function name thing. The right side of the system can display the corresponding comment: 1: #include 2: //This is
I. Nature of the class 1: The// class itself is also an object, is a class-type object, short-class object 2: 3: / * 4: Create a person class object with Class 5: 6: Create object of person type with person class object 7: 8: * /Second, the load order of the Class 1. When the program starts, all classes and classifications in the project are loaded, and the +load method for each class and classification is called after it is loade
1.property function Usage 1: //@property: Setter and getter declarations that can automatically generate a member variable 2: int age; The declaration of a variable can be dispensed with directly 3: //-(void) Setage: (int) age; 4: //-(int) age;2. Attention pointsIf you use the property but write your own get or set method, your own writing will overwrite the corresponding method of the system. 1: -(void) Setage: (int) age 2: { 3: 4: } 5: 6: //-(int) age
; 8: 9: if (count%10 = = 0) Ten: One : { : : //end this cycle directly and enter the next cycle : : continue; : : } : : printf ("Do%d push-ups \ n", Count); : : } : Four. The common dead loop of the while statement1. The simplest cycle of death 1: while (1);2. Never-ending "hahaha" 1: while (10) 2: 3: { 4: 5: printf ("haha \ n"); 6: 7: } 8: Five. While application small example 1: /* 2: 3:
1. Definition of pointersFormat: Variable type * variable name; 1: //defines a pointer variable p 2: //pointer variable can only store address 3: //Pointer is a function: can access the corresponding storage space according to an address value 4: //pointer variable p before INT: pointer variable p can only point to data of type int 5: 6: int *p;2. Pointers pointing to pointers3. Pointers and Arrays1) How array elements are accessed int ages[5];int *p;p = ages
1. Specific usage 1: int b; 2: int a = 10; 3: //b = ten +; 4: //b = (a++) + (++a); 5: 6: //b = one + one; 7: b = (++a) + (a++); 8: //a -one 9: 10: One : //A:12 : printf ("b=%d, a=%d\n", B, a);2. The difference between "++a" and "a++"Add in front and add after3. Questions about Lvalue ("left value") 1: int A; 2: (-a) + +;This code is wrong, because "-a" is not a variable, cannot be assigned, it can
As the online gaming market becomes increasingly fierce, there are a large number of game types and platforms. An excellent online game can produce a series of products such as movies, books, and cartoons, what kind of item can make global players willing to pay for it? The rapid growth of online game development costs is becoming a headache for developers. There are fewer and fewer online games that can make a big sale like World of Warcraft.
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Many years ago video of the same period seen a lot, horse soldiers, Zhang Xiaoxiang, Wang Yong, there are many.The horse soldier is the only one who at the time seemed to teach the beginner to understand that the others were not to let others understand that the main experience in this area was slightly less than that of the
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